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7.76k
sciq
sciq_01_11140
What is the name of the process in which both the system and its environment can return to exactly the states they were in by following the reverse path?
[ "reversible process", "Remote process", "Different Process", "conductive process" ]
A
Reversible Processes Both isothermal and adiabatic processes such as shown in Figure 15.13 are reversible in principle. A reversible process is one in which both the system and its environment can return to exactly the states they were in by following the reverse path. The reverse isothermal and adiabatic paths are BA ...
ARC-Challenge
arc_04_02760
Which of these is not an example of a physical change of state?
[ "boiling", "stirring", "freezing", "evaporating" ]
B
null
medmcqa
medmcqa_05_00222
Sign of shock is-
[ "Hypotension", "Bradycardia", "Polyuria", "Chest pain" ]
A
Signs and symptoms of shock vary depending on circumstances and may include: Cool, clammy skin Pale or ashen skin Bluish tinge to lips or fingernails (or gray in the case of dark complexions) Rapid pulse Rapid breathing Nausea or vomiting Enlarged pupils Weakness or fatigue Dizziness or fainting Hypotension Changes in ...
sciq
sciq_01_06549
What bond is a force of attraction between ions and atoms?
[ "Ionic bond", "chemical bond", "radiation bond", "carbon bond" ]
B
A chemical bond is a force of attraction between atoms or ions. Bonds form when atoms share or transfer valence electrons.
ARC-Challenge
arc_04_02584
Plants use nutrients found in soil. Which of these can break down in soil and become nutrients?
[ "air", "water", "leaves", "sunlight" ]
C
null
medmcqa
medmcqa_05_03663
Most common inheritance of Achondroplasia is
[ "Sporadic", "Autosomal dominant", "Autosomal recessive", "X-linked recessive" ]
B
(B) Autosomal dominant # ACHONDROPLASIA: This is a condition caused by the failure of normal ossification of bones, mainly the long bones, resulting in dwarfism.> Since growth of the trunk is only marginally affected, the dwarfism is disproportionate; the limbs being out of proportion with the trunk. The shortening is ...
medmcqa
medmcqa_05_01035
Linear accelerator produces?
[ "X rays", "Beta rays", "Gamma rays", "Neutrons" ]
A
ANSWER: (A) X raysREF: Oxford oncology 2nd edition page 398, O P Tondon's Inorganic chemistryRepeat from December 2009Linear accelerator and Betatron are used to produce X Rays by accelerating electronsCyclotron is used to produce Gamma rays.
sciq
sciq_01_04974
What is a segment of dna that carries a code for making a specific polypeptide chain called?
[ "a gene", "a protein", "amino acid", "nucleotide" ]
A
Each particular organism contains many protein molecules that are specific to that organism. The particular base sequence of DNA is responsible for the production of all of the different proteins that are present in each and every living thing that has ever inhabited the Earth. How does that work? Cells use the unique ...
medmcqa
medmcqa_05_03601
Drug dosage best decided in child by -
[ "Weight", "Age", "Height", "Investigation" ]
A
Ans. is 'a' i.e., Weight
ARC-Challenge
arc_04_02859
Which event occurs every day?
[ "seasons changing", "Sun rising and setting", "Moon waxing and waning", "Moon revolving around the Sun" ]
B
null
sciq
sciq_01_02313
In atherosclerosis, thickening of an arterial wall due to this can restrict blood flow through the artery?
[ "high blood pressure", "digestion", "low blood pressure", "plaque formation" ]
D
sciq
sciq_01_05403
What type of diagnosis happens before a baby is born?
[ "postnatal", "prenatal", "fetal", "maternal" ]
B
Prenatal diagnosis refers to the diagnosis of a disease or condition before the baby is born.
openbookqa
obqa_02_04477
Without this a sword would be made of wood
[ "safety regulations", "ice", "ore", "cheap labor" ]
C
rocks often contain large amounts of metal
math_qa
mathqa_03_02912
find the largest 2 digit number which is exactly divisible by 88 ?
[ "88", "89", "99", "54" ]
A
"largest 2 digit number is 99 after doing 99 ÷ 88 we get remainder 11 hence largest 2 digit number exactly divisible by 88 = 99 - 11 = 88 a"
sciq
sciq_01_07879
What is the term for the small particles that rocks are worn down to by water and wind?
[ "fragments", "pebbles", "organisms", "sediments" ]
D
Weathering and erosion. Water, wind, ice, and even plants and animals all act to wear down rocks. Over time they can break larger rocks into smaller pieces called sediments. Moving water, wind, and glaciers then carry these pieces from one place to another. The sediments are eventually dropped, or deposited , somewhere...
sciq
sciq_01_05322
What phenomenon has severe consequences on both natural and man-made objects, including killing trees and degrading marble statues?
[ "natural rain", "carbon rain", "acid rain", "oxygen rain" ]
C
Acid rain has severe consequences on both natural and man-made objects. Acid rain degrades marble statues like the one on the left (A). The trees in the forest on the right (B) have been killed by acid rain.
medmcqa
medmcqa_05_01787
Kau thermometer is used for recording ?
[ "Maximum and minimum temperature", "Low air velocities", "Relative humidity of the air", "Mean radiant temperature" ]
D
Ans. is 'd' i.e., Mean radiant temperature
sciq
sciq_01_11631
Different regions of the cerebral cortex can be associated with particular functions, a concept known as what?
[ "localization of function", "expressiveness of function", "reversal of function", "cytoplasm of function" ]
A
Different regions of the cerebral cortex can be associated with particular functions, a concept known as localization of function. In the early 1900s, a German neuroscientist named Korbinian Brodmann performed an extensive study of the microscopic anatomy—the cytoarchitecture—of the cerebral cortex and divided the cort...
sciq
sciq_01_01569
What kind of fuels include coal, oil, and natural gas?
[ "ancient", "fossil", "sediment", "storage" ]
B
Fossil fuels include coal, oil, and natural gas. Fossil fuels are the greatest energy source for modern society. Millions of years ago, plants used energy from the Sun to form carbon compounds. These compounds were later transformed into coal, oil, or natural gas. Fossil fuels take millions of years to form. For this r...
sciq
sciq_01_03957
What composition determines both eruption type and volcano type?
[ "magma", "chemical", "electrical", "gas" ]
A
Magma composition determines both eruption type and volcano type.
sciq
sciq_01_06878
In what form is the heat absorbed when you heat ice and it reaches a temperature of 0 c?
[ "geothermal energy", "radiation energy", "potential energy", "mechanical energy" ]
C
The heating curve shown is for water but other substances have similarly shaped heating curves. Suppose you begin with solid water (ice) at -30°C and add heat at a constant rate. The heat you add in the beginning will be absorbed as kinetic energy and the temperature of the solid will increase. When you reach a tempera...
openbookqa
obqa_02_00478
We have respiration in our bodies to
[ "deal with gas", "Talk for hours", "Thinking", "Running" ]
A
living things require respiration to use energy
math_qa
mathqa_03_01241
the average weight of 8 person ' s increases by 2.5 kg when a new person comes in place of one of them weighing 50 kg . what is the weight of the new person ?
[ "75 kg", "50 kg", "70 kg", "80 kg" ]
C
"explanation : total increase in weight = 8 ã — 2.5 = 20 if x is the weight of the new person , total increase in weight = x â ˆ ’ 50 = > 20 = x - 50 = > x = 20 + 50 = 70 answer : option c"
math_qa
mathqa_03_01786
karen places a bet with tom that she will beat tom in a car race by 4 miles even if karen starts 4 minutes late . assuming that karen drives at an average speed of 60 mph and tom drives at an average speed of 45 mph , how many q miles will tom drive before karen wins the bet ?
[ "15", "18", "21", "24" ]
D
"let k and t be the speeds of karen and tom respectively . t be the time that karen will travel - - - - > t + 4 / 60 will be the total time tom will travel by the time the distance between karen and tom is 4 miles . thus , per the question , k ( t ) - t ( t + 4 / 60 ) = 4 - - - > t = 7 / 15 hours thus the distance trav...
sciq
sciq_01_06763
Each type of electromagnetic radiation has a characteristic range of wavelengths. the longer the wavelength (or the more stretched out it appears), the less energy is carried. short, tight waves carry what?
[ "heat", "most energy", "sound", "kinetic energy" ]
B
Each type of electromagnetic radiation has a characteristic range of wavelengths. The longer the wavelength (or the more stretched out it appears), the less energy is carried. Short, tight waves carry the most energy. This may seem illogical, but think of it in terms of a piece of moving rope. It takes little effort by...
math_qa
mathqa_03_01699
two cars are driving toward each other . the first car is traveling at a speed of 90 km / h , which is 50 % faster than the second car ' s speed . if the distance between the cars is 975 km , how many hours will it take until the two cars meet ?
[ "6", "6.5", "7", "7.5" ]
B
"the speed of the first car is 90 km / h . the speed of the second car is 90 / 1.5 = 60 km / h . the two cars complete a total of 150 km each hour . the time it takes the cars to meet is 975 / 150 = 6.5 hours . the answer is b ."
sciq
sciq_01_05817
In mammals, hair or fur help conserve bodily what?
[ "water", "food", "heat", "energy" ]
C
Conserving heat is also important, especially in small mammals. A small body has a relatively large surface area compared to its overall size. Because heat is lost from the surface of the body, small mammals lose a greater proportion of their body heat than large mammals. Mammals conserve body heat with their hair or f...
openbookqa
obqa_02_04896
If someone has a bag of old sandwich wrappers, they way that they can do damage to the area they live in is to
[ "recycle them", "re-purpose them", "discard them", "reuse them" ]
C
humans discarding waste in an environment causes harm to that environment
sciq
sciq_01_06400
What allows giraffes to reach leaves that other ground animals cannot?
[ "long necks", "long tongue", "long horns", "camouflage pattern" ]
A
African Giraffes. Giraffes feed on leaves high in trees. Their long necks allow them to reach leaves that other ground animals cannot.
math_qa
mathqa_03_02282
what is the area of a square field whose diagonal of length 26 m ?
[ "287", "269", "338", "200" ]
C
"d 2 / 2 = ( 26 * 26 ) / 2 = 338 answer : c"
openbookqa
obqa_02_00043
On the list of a flower's goals would be to
[ "produce carbon dioxide", "deroot and die", "produce offspring", "remain sterile" ]
C
a flower 's purpose is to produce seeds
sciq
sciq_01_09130
Through what part do exocrine glands discharge their contents?
[ "follicles", "capillaries", "urethra", "tubular ducts" ]
D
Exocrine Glands Exocrine glands release their contents through a duct that leads to the epithelial surface. Mucous, sweat, saliva, and breast milk are all examples of secretions from exocrine glands. They are all discharged through tubular ducts. Secretions into the lumen of the gastrointestinal tract, technically outs...
sciq
sciq_01_10455
What is the term for an expression showing the relationship of the reaction rate to the concentrations of each reactant?
[ "concentric law", "decay law", "flow law", "rate law" ]
D
The proportionality between the rate and becomes an equal sign by the insertion of a constant . A rate law is an expression showing the relationship of the reaction rate to the concentrations of each reactant. The specific rate constant is the proportionality constant relating the rate of the reaction to the concentrat...
medmcqa
medmcqa_05_00439
Which of the following is a prodrug of Penciclovir?
[ "Valacyclovir", "Valganciclovir", "Cidofovir", "Famciclovir" ]
D
Famciclovir is the prodrug of penciclovir which is a Guanosine analogue used against herpes.
math_qa
mathqa_03_01053
a circular rim a having a diameter of 45 inches is rotating at the rate of x inches / min . another circular rim b with a diameter of 30 inches is rotating at the rate of y inches / min . what is the value of y in terms of x , if both the rims reach their starting positions at the same time after every rotation .
[ "3 x / 2'", "4 x / 5'", "7 x / 5'", "5 x / 7'" ]
A
t = s 1 / v 1 = s 2 / v 2 or , 45 / x = 30 / y or , y = 45 x / 30 = 3 x / 2 ( answer a )
sciq
sciq_01_02735
Like the marketplace, the metabolic economy is regulated by what basic principle?
[ "supply and demand", "jobs and demand", "industrial and demand", "price and demand" ]
A
medmcqa
medmcqa_05_02326
An early expanding stage is denoted by
[ "Decreased bih rate and decreased death rate", "Increased bih rate and increased death rate", "Decreased bih rate and increased death rate", "Unchanged bih rate and decreased death rate" ]
D
A nation passes through 5 stages of the demographic life cyclea)High stationary: High bih rate, High death rateb)Early expanding: Bih rate begins to decline, bih rate remains unchangedc)Late expanding: Death rate declines fuher, bih rate tends to fall (India Now)d)Fouh stage: Low bih and death rate e)Declining: Bih rat...
sciq
sciq_01_06603
Stomata must control the transpiration of water vapor and the exchange of carbon dioxide and oxygen that take place during what process?
[ "spermatogenesis", "glycolysis", "fertilization", "photosynthesis" ]
D
For photosynthesis, stomata must control the transpiration of water vapor and the exchange of carbon dioxide and oxygen. Stomata are flanked by guard cells that swell or shrink by taking in or losing water through osmosis. When they do, they open or close the stomata.
sciq
sciq_01_11328
Silicon and germanium react with nitrogen at high temperature to form what?
[ "oxides", "carbonates", "nitrides", "isotopes" ]
C
The cavities normally contain hydrated cations that are loosely bound to the oxygen atoms of the negatively charged framework by electrostatic interactions. The sizes and arrangements of the channels and cavities differ in different types of zeolites. For example, in zeolite A the aluminosilicate cages are arranged in ...
math_qa
mathqa_03_00214
the mean of 50 observations was 36 . it was found later that an observation 44 was wrongly taken as 23 . the corrected new mean is
[ "35.22", "36.12", "36.22", "36.42" ]
D
"solution correct sum = ( 36 x 50 + 44 - 23 ) = 1821 . â ˆ ´ correct mean = 1821 / 50 = 36.42 . answer d"
openbookqa
obqa_02_04148
a decline in the number of predators often leads to
[ "a rise in the number of prey", "an increase in breeding between predators", "a decline in the number of prey", "a decrease in breeding between prey" ]
A
as population of predators decreases , the population of prey will increase in an environment
math_qa
mathqa_03_01221
rectangular tile each of size 35 cm by 30 cm must be laid horizontally on a rectangular floor of size 1000 cm by 210 cm , such that the tiles do not overlap and they are placed with edges jutting against each other on all edges . a tile can be placed in any orientation so long as its edges are parallel to the edges of ...
[ "600'", "400'", "200'", "500'" ]
C
area of tile = 35 * 30 = 1050 area of floor = 1000 * 210 = 210000 no of tiles = 210000 / 1050 = 200 so , the no of tile = 200 answer : c
medmcqa
medmcqa_05_00666
A 55 years old smoking presents with history of five episodes of macroscopic hematuria each lasting for about 4-5 days in the past five years. Which of the following investigations should be performed to evaluate the suspected diagnosis?
[ "Urine microscopy and cytology", "X-ray KUB", "Ultrasound KUB", "DTPA scan" ]
A
Ans. (a) Urine microscopy and cytologyRef: Smith 17th Edition, Pages 308-315Diagnosis of Urinary bladder carcinoma:* Cystoscopy and transurethral resection is the IOC for obvious lesions.* Urinary cytology is the IOC for carcinoma in situ.* Cytological examination of exfoliated cells from tumor is useful in detecting c...
sciq
sciq_01_07168
What two words describe the debate over whether behaviors are caused by genetics or by environment?
[ "positive and negative", "kinetic and potential", "dominant and recessive", "nature and nurture" ]
D
Some behaviors seem to be controlled solely by genes. Others appear to be due to experiences in a given environment. Whether behaviors are controlled mainly by genes or by the environment is often a matter of debate. This is called the nature-nurture debate . Nature refers to the genes an animal inherits. Nurture refer...
medmcqa
medmcqa_05_04536
Which of the following is anti-inflammatory?
[ "IL-1", "IL-4", "IL-6", "TNF-Alpha" ]
B
The following are the anti-inflammatory cytokines: IL-10 TGF-b IL-4 IL-13 Pro-inflammatory cytokines IL-1 IL-6 TNF-Alpha Major anti-inflammatory cytokines include interleukin (IL)-1 receptor antagonist, IL-4, IL-6, IL-10, IL-11, and IL-13. Specific cytokine receptors for IL-1, tumor necrosis factor-alpha, and IL-18 als...
sciq
sciq_01_00038
Fungus-like protist saprobes play what role in a food chain and are specialized to absorb nutrients from nonliving organic matter, such as dead organisms or their wastes?
[ "decomposers", "Soil", "aphids", "fluxes" ]
A
Agents of Decomposition The fungus-like protist saprobes are specialized to absorb nutrients from nonliving organic matter, such as dead organisms or their wastes. For instance, many types of oomycetes grow on dead animals or algae. Saprobic protists have the essential function of returning inorganic nutrients to the s...
medmcqa
medmcqa_05_03955
Which is a treatment of juvenile myoclonic epilepsy in pregnancy?
[ "Levetiracetam", "Carbamazepine", "Vigabatrin", "Phenytoin" ]
A
A unique anticonvulsant which suppresses kindled seizures but is ineffective against rna'-'electroshock or PTZ. Clinical efficacy has been sh,,*. -adjuvant medication in refractory paial seizure,; or without secondary generalization. None of the __ anticonvulsant mechanisms of action appear applicable to levetiracetarn...
ARC-Easy
arc_04_00176
The transfer of thermal energy from one object to another is known as
[ "heat.", "electricity.", "magnetism.", "temperature." ]
A
null
ARC-Easy
arc_04_01797
Which body system is most affected by a disease that causes the bones to become weak and brittle?
[ "excretory", "muscular", "skeletal", "nervous" ]
C
null
sciq
sciq_01_09433
What is the distance that sound waves travel in a given amount of time called?
[ "momentum of sound", "speed of sound", "force of sound", "velocity of sound" ]
B
The speed of sound is the distance that sound waves travel in a given amount of time. The speed of sound in dry air at 20 °C is 343 meters per second.
medmcqa
medmcqa_05_01855
Cardinal feature of antisocial personality disorder is:
[ "Violation of rules of society", "Attention-seeking behavior", "Unstable interpersonal relationships", "Grandiose behavior" ]
A
People with antisocial PD(Dissoscial PD) characteristically disregard rights of others, don't follow norms of society and indulge in antisocial behavior . These person have lack of guilt and remorse and more prone to substance use. It is a type of Cluster B - PD MX - Psychotherapy, Antipsychotics, Carbamazepine ,beta b...
math_qa
mathqa_03_03163
n is a whole number which when divided by 4 gives 3 as remainder . what will be the remainder when 2 * n is divided by 4 ?
[ "8", "2", "6", "7" ]
B
explanation : let n = 4 * q + 3 . then , 2 * n = 8 * q + 6 = 4 ( 2 * q + 1 ) + 2 . thus when 2 * n is divided by 4 , the reminder is 2 . answer : b ) 2
math_qa
mathqa_03_01702
the smallest value of n , for which n + 1 is not a prime number , is
[ "5", "6", "8", "3" ]
D
"( 1 + 1 ) = 2 . ( 2 + 1 ) = 3 . ( 3 + 1 ) = 4 . ( 4 + 1 ) = 5 . which is not prime , n = 3 . answer : d"
math_qa
mathqa_03_00761
the radius of a circle is 4 / π cm then its perimeter is ?
[ "10'", "9'", "8'", "12'" ]
C
perimeter = 2 π r 2 π * 4 / π = 8 cm answer : c
sciq
sciq_01_11483
Lactic acid fermentation is common in muscle cells that have run out of what?
[ "oxygen", "carbon", "helium", "nitrogen" ]
A
Figure 7.14 Lactic acid fermentation is common in muscle cells that have run out of oxygen.
math_qa
mathqa_03_00211
if there are 20 apples and the apples have to be shared equally among 3 babies . what number of apples are to be added ?
[ "1", "2", "3", "4" ]
A
given there are 20 apples . if 1 extra apple is added , then it becomes 21 which can be divided equally that is 7 apples to each baby . option a is correct .
sciq
sciq_01_09112
What is defined as the spreading of white light into its full spectrum of wavelengths?
[ "combustion", "saturation", "dispersion", "immersion" ]
C
We see about six colors in a rainbow—red, orange, yellow, green, blue, and violet; sometimes indigo is listed, too. Those colors are associated with different wavelengths of light, as shown in Figure 25.22. When our eye receives pure-wavelength light, we tend to see only one of the six colors, depending on wavelength. ...
ARC-Easy
arc_04_01108
Students want to find out at which temperature bean plants grow tallest. Which science process skill would be used to find this temperature?
[ "inferring", "predicting", "measuring", "classifying" ]
C
null
medmcqa
medmcqa_05_03312
Which one is not converted to an active metabolite?
[ "Quinapril", "Fosinopril", "Benzopril", "Lisinopril" ]
D
Lisinopril: It is the lysine derivative of enalaprilat; does not require hydrolysis to become active ACE inhibitor.   KEY CONCEPT:- All ACE inhibitors are prodrugs except captopril and lisinopril. Other drugs like enalapril are converted to its active metabolite (enalaprilat) and thus are slow acting. Reference: Essent...
openbookqa
obqa_02_03338
Nearly all prehistoric bones are found in
[ "granite", "shale", "trees", "marble" ]
B
nearly all fossils are found in sedimentary rock
sciq
sciq_01_02474
How does lysozyme destroy bacteria?
[ "by digesting their cell walls", "by antibiotic use", "by paralyzing them", "by eating them" ]
A
Another barrier is the saliva in the mouth, which is rich in lysozyme—an enzyme that destroys bacteria by digesting their cell walls. The acidic environment of the stomach, which is fatal to many pathogens, is also a barrier. Additionally, the mucus layer of the gastrointestinal tract, respiratory tract, reproductive t...
math_qa
mathqa_03_02984
a and b can do a piece of work in 30 days , while b and c can do the same work in 24 days and c and a in 20 days . they all work together for 10 days when b and c leave . how many days more will a take to finish the work ?
[ "18 days", "24 days", "30 days", "36 days" ]
A
explanation : 2 ( a + b + c ) ' s 1 day ' s work = ( 1 / 30 + 1 / 24 + 1 / 20 ) = 15 / 120 = 1 / 8 work done by a , b , c in 10 days = 10 / 6 = 5 / 8 . a ' s 1 day ' s work = ( 1 / 16 - 1 / 24 ) = 1 / 48 now , 1 / 48 work is done by a in 1 day so , 3 / 8 work will be done by a in ( 48 x 3 / 8 ) = 18 days . answer is a
sciq
sciq_01_03191
Why are exotic species also called invasive species?
[ "help other species", "threaten other species", "disregard other species", "imitate other species" ]
B
conditions in the new environment, threatening the species that exist there. For this reason, exotic species are also called invasive species. Exotic species can threaten other species through competition for resources, predation, or disease.
ARC-Easy
arc_04_02064
Which of these groups contains single-celled organisms?
[ "birds", "plants", "fungus", "animals" ]
C
null
math_qa
mathqa_03_03668
a batsman scored 140 runs which included 3 boundaries and 8 sixes . what percent of his total score did he make by running between the wickets ?
[ "50 %", "40 %", "60 %", "57 %" ]
D
"number of runs made by running = 140 - ( 3 x 4 + 8 x 6 ) = 140 - ( 60 ) = 80 now , we need to calculate 80 is what percent of 140 . = > 80 / 140 x 100 = 57 % answer : d"
sciq
sciq_01_11671
What is the major artery of the body, taking oxygenated blood to the organs and muscles of the body?
[ "aorta", "diastolic", "capillary", "carotid" ]
A
The Heart The heart is a complex muscle that consists of two pumps: one that pumps blood through pulmonary circulation to the lungs, and the other that pumps blood through systemic circulation to the rest of the body’s tissues (and the heart itself). The heart is asymmetrical, with the left side being larger than the r...
sciq
sciq_01_06470
Because conifers carry both male and female sporophylls on the same mature sporophyte, they are considered what type of plant?
[ "bioecious", "siliceous", "monoecious", "dioecious" ]
C
Life Cycle of a Conifer Pine trees are conifers (cone bearing) and carry both male and female sporophylls on the same mature sporophyte. Therefore, they are monoecious plants. Like all gymnosperms, pines are heterosporous and generate two different types of spores: male microspores and female megaspores. In the male co...
ARC-Easy
arc_04_01727
Rocks that contain fragments of bones, shells, and plant remains are most likely
[ "crystals.", "igneous.", "sedimentary.", "metamorphic." ]
C
null
medmcqa
medmcqa_05_04248
A boy with undescended testis, your concern to ask for operation is due to –a) Cosmetic reasonsb) Infertilityc) Risk of malignancyd) Impotence
[ "a", "c", "ac", "bc" ]
D
Let's see both options one by one. 1. Infertility Infertility is a complication of undescended testis. After treatment for a unilateral undescended testis, 85% of patients are fertile. Following bilateral aorchidopexy 50-65% of patients are fertile. 2. Malignancy Risk of developing germ cell tumors in an undescended...
math_qa
mathqa_03_04635
in a division , a student took 72 as divisor instead of 36 . his answer was 24 . the correct answer is -
[ "42", "32", "48", "28" ]
C
"x / 72 = 24 . x = 24 * 72 . so correct answer would be , ( 24 * 72 ) / 36 = 48 . answer : c"
sciq
sciq_01_02710
Acceleration is a vector, and thus has a both a magnitude and what else?
[ "pressure", "temperature", "wavelength", "direction" ]
D
Acceleration is a vector, and thus has a both a magnitude and direction. Acceleration can be caused by either a change in the magnitude or the direction of the velocity. Instantaneous acceleration a is the acceleration at a specific instant in time. Deceleration is an acceleration with a direction opposite to that of t...
sciq
sciq_01_04064
In humans, each set of chromosomes contains 22 of these and 1 sex chromosome?
[ "chromatids", "genes", "autosomes", "centrosomes" ]
C
In humans, each set of chromosomes contains 22 autosomes and 1 sex chromosome . Autosomes are chromosomes that are not directly involved in determining the sex of an individual. The sex chromosomes contain genes that determine the sex of an individual.
sciq
sciq_01_01472
Blood from the body enters what chamber of the heart before it is pumped to the right ventricle and then to the lungs?
[ "right atrium", "left ventricle", "left atrium", "left bivalve" ]
A
Blood from the body enters the right atrium of the heart. The right atrium pumps the blood to the right ventricle, which pumps it to the lungs. This loop is represented by the blue arrows in Figure above .
sciq
sciq_01_05922
When does the nucleus divide?
[ "photosynthesis", "epistasis", "mitosis", "meiosis" ]
C
The nucleus divides during mitosis, and the cytoplasm divides during cytokinesis.
math_qa
mathqa_03_04953
a man ' s age is 125 % of what it was 10 years ago , but 83 x 1 / 3 % of what it will be after 10 years . what is his present age ?
[ "20", "60", "50", "70" ]
C
c 50 let the age before 10 years = x then , 125 x / 100 = x + 10 ⇒ 125 x = 100 x + 1000 ⇒ x = 1000 / 25 = 40 present age = x + 10 = 40 + 10 = 50
math_qa
mathqa_03_02827
the present population of a town is 1000 . population increase rate is 25 % p . a . find the population of town before 1 years ?
[ "800", "1500", "1000", "750" ]
A
"p = 1000 r = 25 % required population of town = p / ( 1 + r / 100 ) ^ t = 1000 / ( 1 + 25 / 100 ) = 1000 / ( 5 / 4 ) = 800 answer is a"
math_qa
mathqa_03_03692
a and b together can do a piece of work in 3 days . if a alone can do the same work in 20 days , then b alone can do the same work in ?
[ "0.28 days", "0.45 days", "0.55 days", "0.25 days" ]
A
"b = 1 / 2 – 1 / 20 = 0.28 days answer : a"
openbookqa
obqa_02_04133
If a person is choosing to be near a metal heat source, normally located on a building's interior wall, then that person
[ "is combusting", "is too hot", "desires warmth", "is on fire" ]
C
a radiator is a source of heat
sciq
sciq_01_03307
What keeps earth in orbit around the sun?
[ "motion", "momentum", "gravity", "energy" ]
C
Why do satellites stay in orbit? Why don't they crash into Earth due to the planet's gravity? Newton’s law of universal gravitation describes what happens. Every object in the universe is attracted to every other object. Gravity makes an apple fall to the ground. Gravity also keeps you from floating away into the sky. ...
sciq
sciq_01_00530
Which constellation looks like a rectangle high in winter's south-southeastern sky?
[ "Andromeda", "orion", "Caelum", "Apus" ]
B
The star constellation “Orion, The Hunter”. Orion is one of the most beautiful of all constellations, and one of the easiest to find. It looks like a large (slightly twisted) rectangle high in winter's south-southeastern sky. Two of the brightest stars in the evening sky lie at opposite corners of the rectangle: bright...
medmcqa
medmcqa_05_02283
Embryonic period of development is -
[ "Upto 16 weeks", "Upto 12 weeks", "Upto 10 weeks", "Upto 8 weeks" ]
D
Ans. is 'd' i.e., Upto 8 weeks o The embryonic period of development extends from the 4th to 8th week of gestation and is also called the period of organogenesis.3 phases of development1. Pre-embryo phase (germinal phase) - day 0 to week 32. Embryo phase - weeks 4-83. Foetal phase - weeks 8-38o Pre-embryo phase divided...
sciq
sciq_01_03298
Scientific notation expresses a number as a what, times a power of 10?
[ "function", "expression", "fraction", "coefficient" ]
D
Scientific notation expresses a number as a coefficient times a power of 10.
sciq
sciq_01_02726
What subject is a way of learning about the natural world that is based on evidence and logic?
[ "geology", "evolution", "geography", "science" ]
D
Science is a way of learning about the natural world that is based on evidence and logic.
ARC-Easy
arc_04_00123
Light travels fastest through which of the following?
[ "air", "glass", "water", "a vacuum" ]
D
null
ARC-Easy
arc_04_02077
The Great Basin in Nevada is characterized by uplifted, tilted blocks forming mountain ranges and downthrown blocks forming basins. What rock type is MOST likely to form in the basins?
[ "metamorphic", "sedimentary", "intrusive igneous", "extrusive igneous" ]
B
null
sciq
sciq_01_09057
In seedless vascular plants such as ferns, the sporophyte releases spores from the undersides of what basic plant structures?
[ "leaves", "roots", "fruits", "stems" ]
A
In seedless vascular plants such as ferns, the sporophyte releases spores from the undersides of leaves.
sciq
sciq_01_04007
What do you call an animal that feeds on other animals?
[ "herbivore", "omnivore", "polyvore", "carnivore" ]
D
Birds live in a variety of different habitats. Birds that live in different habitats will encounter different foods and different predators. Birds can be carnivores (feeding on other animals), herbivores (feeding on plants), or generalists (feeding on a variety of foods). The lifestyle of the bird can affect what it lo...
sciq
sciq_01_09717
What is the term for a pure substance that possesses unique properties and cannot be broken down into other substances?
[ "light", "alloy", "element", "plastic" ]
C
An element is pure substance that cannot be broken down into other substances. Each element has a particular set of properties that, taken together, distinguish it from all other elements. Table below lists the major elements in the human body. As you can see, you consist mainly of the elements oxygen, carbon, and hydr...
ARC-Easy
arc_04_00929
Earth is made of different layers that have varying characteristics. Which is the thickest layer?
[ "the mantle", "the inner core", "the outer core", "the crust" ]
A
null
medmcqa
medmcqa_05_01266
The following are effective in the management of eczema:
[ "Topical betamethasone", "Topical alpha-tocopherol", "Dithranol", "Calcipotriol" ]
A
Topical coicosteroids are required both in 'wet' and 'dry' eczema. Betamethasone is a high-potency topical glucocoicoid. In mild wet eczema, the topical use of drying agents such as lotions of aluminium acetate or calamine are useful. When the lesions are dry and scaly the use of emollients combined with a keratolytic ...
sciq
sciq_01_05048
The magnitude of the momentum vector is the product of what two properties?
[ "volume and speed", "acceleration and speed", "work and speed", "mass and speed" ]
D
Momentum is a vector that points in the direction of the velocity vector. The magnitude of this vector is the product of mass and speed.
math_qa
mathqa_03_00688
a 70 cm long wire is to be cut into two pieces so that one piece will be 2 / 3 th of the other , how many centimeters will the shorter piece be ?
[ "35", "20", "28", "36" ]
C
"1 : 2 / 3 = 3 : 2 2 / 5 * 70 = 28 answer : c"
ARC-Easy
arc_04_00128
A student determined the density of different bars of soap. Which should the student most likely do to check the accuracy of the results?
[ "complete the experiment in one day", "test multiple brands of soap", "record data in metric units", "repeat the experiment" ]
D
null
math_qa
mathqa_03_01862
a sum is divided among b , c and d in such a way that for each rupee b gets , c gets 150 paisa and d gets 50 paisa . if the share of c is rs . 40 , what is the total amount ?
[ "70", "75", "80", "85" ]
C
b : c : d = 100 : 150 : 100 20 : 30 : 10 30 - - - 40 60 - - - ? = > 80 answer : c
sciq
sciq_01_06561
What is the number placed in front of a chemical symbol or formula that shows how many atoms or molecules of the substance are involved in the reaction?
[ "coefficient", "note", "requirement", "frequency" ]
A
Coefficients are used to balance chemical equations. A coefficient is a number placed in front of a chemical symbol or formula. It shows how many atoms or molecules of the substance are involved in the reaction.
openbookqa
obqa_02_00090
Fungi
[ "can do their food chain jobs without ingestion", "act as predators in the food chain", "are always safe to ingest", "occupy the top of the food chain" ]
A
In the food chain process fungi have the role of decomposer
ARC-Easy
arc_04_01519
Perfume sprayed from a bottle spreads more easily in a warm room of 25°C than in a cool room of 15°C. Which of the following correctly compares perfume molecules at 25°C to those at 15°C?
[ "At 25°C, they have more mass.", "At 25°C, they are moving faster.", "At 25°C, they have less kinetic energy.", "At 25°C, they are decreasing in volume." ]
B
null
openbookqa
obqa_02_01937
What enters the eye through the pupil?
[ "diverse light energy", "light bacteria", "air", "drops of water" ]
A
light enters the eye through the pupil
medmcqa
medmcqa_05_02027
Which is the BEST diagnostic enzymatic essay to be done within 4 hours following an acute MI?
[ "MB isoenzyme of CK", "Reagin isoenzyme", "LDH4", "LDH1" ]
A
CREATINE KINASE: INCREASED IN: Muscle damage (AMI, myocarditis, muscular dystrophy, muscle trauma , aftermath of surgery), brain infarction, defibrillation, cardiac catheterization and surgery, rhabdomyolysis, polymyositis, hypothyroidism. CPK Isoenzymes: Increased CK MB is seen in: (Normal < 6%, hea origin) increased ...
openbookqa
obqa_02_04448
A plant needing to photosynthesize will best be able to
[ "in a roofless room", "in a cardboard box", "in a windowless room", "in a car with tinted windows" ]
A
a plant requires sunlight for photosynthesis