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ARC-Easy
arc_04_00300
Which of the following would be more likely to pollute a river?
[ "allowing beavers to build a dam", "spreading fertilizer near the river", "mowing the grass on the river bank", "fishing from a bridge over the river" ]
B
null
sciq
sciq_01_09598
The nitrogen cycle includes air, soil, and what?
[ "heat", "decomposers", "living things", "water" ]
C
The nitrogen cycle includes air, soil, and living things.
openbookqa
obqa_02_02634
Which of the following is the most replaceable?
[ "the energy captured by a windmill", "the oil from the earth", "the iron from the earth", "the energy provided by natural hydrogen" ]
A
a renewable resource can be replaced
ARC-Easy
arc_04_01251
Amanda is learning about different adaptations of animals. Which is an example of a behavioral adaptation?
[ "webbed feet on a duck", "migration of songbirds", "sharp eyesight of an eagle", "camouflaged colors on a frog" ]
B
null
math_qa
mathqa_03_03966
mahesh can do a piece of work in 60 days . he works at it for 20 days and then rajesh finished it in 30 days . how long will y take to complete the work ?
[ "45", "25", "37", "41" ]
A
"work done by mahesh in 60 days = 20 * 1 / 60 = 1 / 3 remaining work = 1 - 1 / 3 = 2 / 3 2 / 3 work is done by rajesh in 30 days whole work will be done by rajesh is 30 * 3 / 2 = 45 days answer is a"
sciq
sciq_01_06182
The ends of linear chromosomes are maintained by the action of which enzyme?
[ "telomerase", "cytokine", "pepsin", "insulin" ]
A
Figure 9.11 The ends of linear chromosomes are maintained by the action of the telomerase enzyme.
sciq
sciq_01_00818
What does every star emit that humans cannot see?
[ "radiation", "dust", "light", "sound" ]
A
Visible light is only a small part of the electromagnetic spectrum. There are parts of the electromagnetic spectrum that humans cannot see. This radiation exists all around you. You just can’t see it! Every star, including our Sun, emits radiation of many wavelengths. Astronomers can learn a lot from studying the detai...
medmcqa
medmcqa_05_02382
A ceain commuity has 100 children out of whom 28 are immunuzed against measles; 2 of them acquire measles simultaneously; Subsequently 14 get measles. Assuming the efficacy of vaccine to be 100%. What is the sec. Attack rate -
[ "5%", "10%", "20%", "21.50%" ]
C
Ans. is 'c' i.e., 20% o The impoant features of SAR : - i) The primary case is excluded from both the numerator and denominator. ii) Denominator is restricted to susceptible contacts of primary case. iii) In denominator, person should be suscetible ---> Immune person (to disease) are not susceptible to develop the dise...
sciq
sciq_01_07262
What type of plants have vascular tissue but do not have seeds?
[ "starchy vascular plants", "rocky vascular plants", "seedless vascular plants", "ofen vascular plants" ]
C
Seedless vascular plants have vascular tissue but do not have seeds.
ARC-Easy
arc_04_01850
Which of these occurs if myosin fails to bind to actin during muscle contraction?
[ "The muscle cells will lose ATP.", "The muscle cells will remain relaxed.", "The muscle cells will produce lactic acid.", "The muscle cells will lose calcium ions." ]
B
null
medmcqa
medmcqa_05_04594
Which of the following drug is used in this test?
[ "Tolazoline", "Clonidine", "Bismuth", "Oxymetazoline" ]
A
The picture shows Peripheral angiography for which we need vasodilatation. Vasodilatation is produced best by non-selective alpha-blockers, tolazoline is more selective for peripheral vesselsRef: CMDT 2010-Pg 1434
sciq
sciq_01_08674
What are the organs work together to allow us to see?
[ "heart", "lungs", "brain and eyes", "nose" ]
C
The ability to see is called vision. The brain and eyes work together to allow us to see. The eyes collect and focus visible light and change it to electrical signals that travel to the brain. The brain interprets the signals and “tells” us what we are seeing.
sciq
sciq_01_08912
When a male directly deposits sperm in a female during mating, this is considered what type of fertilization?
[ "internal", "mechanical", "dual", "external" ]
A
Internal Fertilization Internal fertilization occurs most often in terrestrial animals, although some aquatic animals also use this method. Internal fertilization may occur by the male directly depositing sperm in the female during mating. It may also occur by the male depositing sperm in the environment, usually in a ...
sciq
sciq_01_10191
What term describes how close estimates are to one another?
[ "precise", "precision", "Distant", "efficiency" ]
B
Precision describes how close estimates are to one another. Estimates that are relatively close to one another are precise. Let’s assume that ten different students made an estimate of the volume shown in Figure above , and the values were: 52.9, 52.8, 52.9, 52.9, 53.3, 52.0, 52.8, 52.9, 53.0, 52.8. We can determine ho...
ARC-Easy
arc_04_01569
A dog opens its mouth and lets its tongue hang out. A human's body produces sweat. These are two ways that organisms may adjust to
[ "cold temperatures", "hot temperatures", "a shortage of food", "a shortage of drinking water" ]
B
null
sciq
sciq_01_07460
An oxy-acetylene torch is an effective way to cut what?
[ "metal", "coal", "wood", "plastic" ]
A
One of the most effective ways to cut metal is with an oxy-acetylene torch. Very high temperatures are obtained when acetylene burns in oxygen. Mixed 1:1 with oxygen, a temperature of over 3000°C can be achieved. The amount of energy released is high – the net heat of combustion is 1300 kJ/mole. Safety precautions need...
medmcqa
medmcqa_05_00202
While treating benign prostatic hyperplasia with finasteride the period of trial required for maximum response
[ "1 month", "3 months", "6 months", "18 months" ]
C
Minimum time to act - 1 month Maximum response around 6 months.
sciq
sciq_01_08998
Anabolic reactions require energy, so they are considered what type of reaction?
[ "autotrophic", "exothermic", "hydrostatic", "endothermic" ]
D
Anabolic reactions involve forming bonds. Smaller molecules are combined to form larger ones. For example, simple sugars are combined to form complex carbohydrates. Anabolic reactions require energy, so they are endothermic.
sciq
sciq_01_11276
When salinity and pressure increase, or when temperature decreases, what happens to water density?
[ "drops", "fluctuates", "stays the same", "increases" ]
D
Water density increases as salinity and pressure increase, or as temperature decreases.
sciq
sciq_01_03898
What is formed when atoms of different elements bond together?
[ "covalent compound", "duality compound", "univalent compound", "phenotype compound" ]
A
The two atoms that are held together in a covalent bond may be atoms of the same element or different elements. When atoms of different elements bond together, it forms a covalent compound.
openbookqa
obqa_02_03610
if a book was intact on the desk in the morning, but in shreds in the afternoon, what happened?
[ "it had spontaneous combustion", "the book was made of plastic", "it underwent a tearing process", "the book committed suicide" ]
C
tearing means changing a whole into pieces
ARC-Easy
arc_04_01880
Which geologic feature is evidence that the North American plate once collided with the Eurasian and African plates?
[ "the Appalachian Mountains", "the Mohave Desert", "the Mississippi River", "the Great Lakes" ]
A
null
medmcqa
medmcqa_05_04298
Spleen projects into the following space of peritoneal cavity?
[ "Paracolic gutter", "Infracolic compartment", "Left subhepatic space", "Greater Sac" ]
D
Being developed in the dorsal mesogastrium, the spleen projects into the greater sac surrounded by peritoneum of the original leaf of the dorsal mesogastrium."- Last's Anatomy
sciq
sciq_01_11348
What are chromosomes in the same pair called?
[ "homogeneous chromosomes", "homologous chromosomes", "reversible chromosomes", "regulated chromosomes" ]
B
In sexually reproducing species, chromosomes are present in cells in pairs. Chromosomes in the same pair are called homologous chromosomes. They have the same genes at the same loci. These may be the same or different alleles. During meiosis, when gametes are produced, homologous chromosomes separate. They go to differ...
medmcqa
medmcqa_05_04358
Head quaers of FAO is at -
[ "New york", "Geneva", "Rome", "San francisco" ]
C
The Food and Agriculture Organization was formed in 1945 with headquaers in Rome .It was the first United Nations Organization specialized agency created to look after several areas of world cooperation (refer pgno:923 park 23rd edition)
medmcqa
medmcqa_05_02113
Most common type of pathological changes seen in Rabies are
[ "Meningitis", "Cranial aeritis", "Ventriculitis", "Brain stem encephalitis" ]
D
Refer Robbins page no Pg 1277 Histopathologic evidence of rabies encephalomyelitis (inflammation) in brain tissue and meninges includes the following: Mononuclear infiltration Perivascular cuffing of lymphocytes or polymorphonuclear cells Lymphocytic foci Babes nodules consisting of glial cells Negri bodies
sciq
sciq_01_10086
When boron10 absorbs a neutron, what does it emit?
[ "particle", "calcium", "proteins", "light" ]
A
Boron neutron capture therapy is a potential treatment for many diseases. As the name implies, when boron10, one of the naturally occurring isotopes of boron, is bombarded with neutrons, it absorbs a neutron and emits an α particle. Write a balanced nuclear reaction for this reaction. One advantage of this process is t...
sciq
sciq_01_02676
What are plants that grow where people don't want them to and can take up space and use resources which hinders growth of more desirable plants?
[ "native plants", "weeds", "shrubs", "grasses" ]
B
We obviously can’t live without plants, but sometimes they cause us problems. Many plants are weeds. Weeds are plants that grow where people don’t want them, such as gardens and lawns. They take up space and use resources, hindering the growth of more desirable plants. People often introduce plants to new habitats wher...
math_qa
mathqa_03_04145
the edge of a cube is 5 a cm . find its surface ?
[ "150 a 2 cm 2", "170 a 2 cm 2", "125 a 2 cm 2", "175 a 2 cm 2" ]
A
"6 a 2 = 6 * 5 a * 5 a = 150 a 2 answer : a"
ARC-Challenge
arc_04_02595
A group of students plans to build a model of a local pond habitat. Which model best represents an environment similar to a pond?
[ "a sealed plastic bottle containing insects and algae from a pond", "a classroom aquarium containing plants and animals bought from a store", "a classroom aquarium containing freshwater, non-native plants, and non-native animals", "a small plastic outdoor pool containing freshwater, native plants, and native ...
D
null
sciq
sciq_01_03067
What process is involved in the formation of a waterfall, when a stream flows from an area of harder to softer rock?
[ "calcification", "erosion", "migration", "evaporation" ]
B
Mountain streams may erode waterfalls. A waterfall forms where a stream flows from an area of harder to softer rock ( Figure below ). The water erodes the softer rock faster than the harder rock. This causes the stream bed to drop down, like a step. This creates a waterfall. As erosion continues, the waterfall graduall...
medmcqa
medmcqa_05_02004
Antibiotic Prophylaxis for infective endocarditis is indicated in -
[ "Isolated secundum ASD", "Mitral valve prolapse without regurgitation", "Prior coronary artery bypass graft", "Coarctation of aorta" ]
D
Ans. is 'd' i.e., Coarctation of aorta o Coarctation of Aorta is a high risk cardiac lesion for the development of infective endocarditis and an indication for antibiotic prophylaxisPronhvlaxis for infective Endocarditis||Cardiac lesion for which Endocarditisprophylaxis Advised (moderate/Hieh risk lesions)Cardiac lesio...
sciq
sciq_01_05457
In vascular plants, the sporophyte generation is what?
[ "evident", "fast", "dominant", "submissive" ]
C
In vascular plants, the sporophyte generation is dominant. In seedless vascular plants such as ferns, the sporophyte releases spores from the undersides of leaves. The spores develop into tiny, separate gametophytes, from which the next generation of sporophyte plants grows.
sciq
sciq_01_02454
Untreated botulism is typically fatal because muscles required for breathing fail to contract when the release of what chemical is blocked?
[ "carbon dioxide", "acetylcholine", "hydrogen", "monoxide" ]
B
medmcqa
medmcqa_05_00129
Which of the following is not a phase I Reaction:
[ "Oxidation", "Reduction", "Hydrolysis", "Conjugation" ]
D
D i.e. Conjugation
math_qa
mathqa_03_01606
30 men can do a work in 40 days . when should 12 men leave the work so that the entire work is completed in 40 days after they leave the work ?
[ "18 days", "10 days", "55 days", "44 days" ]
A
"total work to be done = 30 * 40 = 1200 let 12 men leave the work after ' p ' days , so that the remaining work is completed in 40 days after they leave the work . 40 p + ( 12 * 40 ) = 1200 40 p = 720 = > p = 18 days answer : a"
ARC-Easy
arc_04_01423
At a weightlifting competition, two competitors lifted the same weight to the same height. The second competitor accomplished the lift 2 seconds faster than the first competitor. This demonstrated that the second competitor had more
[ "energy than the first.", "inertia than the first.", "power than the first.", "work than the first." ]
C
null
math_qa
mathqa_03_02680
a metallic sphere of radius 12 cm is melted and drawn into a wire , whose radius of cross section is 12 cm . what is the length of the wire ?
[ "6 cm", "14 cm", "16 cm", "23 cm" ]
C
"volume of the wire ( in cylindrical shape ) is equal to the volume of the sphere . π ( 12 ) ^ 2 * h = ( 4 / 3 ) π ( 12 ) ^ 3 = > h = 16 cm answer : c"
openbookqa
obqa_02_04344
What rises and sets causing cycles of day and night?
[ "the closest gas giant planet", "another galaxy near ours", "the closest planet to earth", "the closest yellow dwarf star" ]
D
the sun rising and setting causes cycles of day and night
openbookqa
obqa_02_02647
If a raptor loses weight, then it will have an easier time
[ "eating a goldfish cracker", "building a small house", "circling way up there", "leaving home at night" ]
C
as the weight of an animal decreases , that animal will fly more easily
sciq
sciq_01_10759
Visible light can be split into colors with the use of a what?
[ "spectrum", "convex lenses", "prism", "kaleidoscope" ]
C
The Figure above shows how the electromagnetic spectrum displays a wide variation in wavelength and frequency. Radio waves have wavelengths of as long as hundreds of meters, while the wavelength of gamma rays are on the order of 10 -12 m. The corresponding frequencies range from 10 6 to 10 21 Hz. Visible light can be s...
sciq
sciq_01_02416
In a displacement graph, the slope of the line is the average what?
[ "direction", "speed", "time", "velocity" ]
D
Example 2.17 Determining Average Velocity from a Graph of Displacement versus Time: Jet Car Find the average velocity of the car whose position is graphed in Figure 2.47. Strategy The slope of a graph of x vs. t is average velocity, since slope equals rise over run. In this case, rise = change in displacement and run =...
openbookqa
obqa_02_01091
When it gets dark the earliest in California it is
[ "the time California is closest to the sun", "the time Australia is closest to the sun", "the time Europe is closest to the sun", "the time Mexico is closest to the sun" ]
B
winter is when a hemisphere is tilted away from the sun
openbookqa
obqa_02_02196
A person wanting to use the daylight to power objects would consider adding to their home a few
[ "absorbing converters", "convertible socks", "metal eaves", "play streets" ]
A
a solar panel converts sunlight into electricity
medmcqa
medmcqa_05_00787
The fracture seen in x-ray is seen in:
[ "Partial hanging", "Manual throttling", "Judicial hanging", "Bansdola" ]
C
Ans. (C). Judicial hangingThe x-ray shows anterior dislocation of C2 over C3 (spondylolisthesis of C2)It is termed as Hangman's fractureQ.It is associated with judicial hanging (hanging with a long drop)
ARC-Easy
arc_04_01973
Which provides the oldest evidence for oxygen accumulation in Earth's atmosphere?
[ "the earliest fossils of animals", "the earliest sediments of oxidized rock", "impact craters of oxidized-iron asteroids", "extensive volcanic calderas of similar age" ]
B
null
sciq
sciq_01_04399
Cancer is caused by mutations, which can be caused by pathogens, chemicals, or what else?
[ "convection", "evaporation", "diseases", "radiation" ]
D
Cancer is caused by mutations, which can be caused by pathogens, chemicals, or radiation.
openbookqa
obqa_02_04415
Which would likely lessen the impact of climate change the most?
[ "Earth Day", "hurricanes", "tsunamis", "wildfires" ]
A
planting trees has a positive impact on an ecosystem
sciq
sciq_01_07438
Which plant group has vascular tissue, seeds, and flowers?
[ "spores", "angiosperms", "fungi", "microbes" ]
B
Angiosperms have vascular tissue, seeds, and flowers.
openbookqa
obqa_02_00209
An example of feeling
[ "Water sitting in front of me", "My pants against my skin", "Plants in the sun", "The TV turned on" ]
B
feeling is when an living thing senses through touch
sciq
sciq_01_01065
What is the outer core made of?
[ "solid rock", "liquid metal", "compressed air", "solid iron" ]
B
Yes! The outer core, anyway. The outer core is liquid metal, like in this photo. Of course, the metal is under an incredible amount of pressure.
openbookqa
obqa_02_02057
Heat causes
[ "water to turn to vapor in a process called condensation", "water to melt in a process called condensation", "water to turn to vapor in a process called evaporation", "water to melt in a process called abomination" ]
C
evaporation is when water is drawn back up into the air in the water cycle
openbookqa
obqa_02_00227
Pollution is caused by
[ "reusing cloth baby diapers", "recycling plastic water bottles", "using all natural household cleaners", "prescription medicine being put down sink drains" ]
D
pollution is a source of pollutants
math_qa
mathqa_03_02086
what will be the compound interest on a sum of rs . 21,000 after 3 years at the rate of 12 % p . a . ?
[ "rs . 8503.49", "rs . 9720", "rs . 10123.20", "rs . 10483.20" ]
A
"amount = [ 21000 * ( 1 + 12 / 100 ) 3 ] = 21000 * 28 / 25 * 28 / 25 * 28 / 25 = rs . 29503.49 c . i . = ( 29503.49 - 21000 ) = rs . 8503.49 answer : a"
sciq
sciq_01_08722
What makes up the central nervous system?
[ "brain and heart", "brain and spinal cord", "heart and lungs", "spine and lungs" ]
B
The central nervous system is made up of the brain and the spinal cord.
math_qa
mathqa_03_02280
a one - foot stick is marked in 1 / 2 and 1 / 4 portion . how many total markings will there be , including the end points ?
[ "8", "4", "5", "6" ]
C
"lcm of 8 = 4 1 / 2 marking are ( table of 2 ) 0 . . . . . . 2 . . . . . . . . . . . 4 ( total = 3 ) 1 / 4 marking are ( table of 1 ) 0 . . . . . . . 1 . . . . . . 2 . . . . . . 3 . . . . . . . . 4 ( total = 5 ) overlapping markings are 0 . . . . . . . . 2 . . . . . . . . . 4 ( total = 3 ) total markings = 3 + 5 - 3 = ...
sciq
sciq_01_09775
The ph scale is a scale used to express the concentration of hydrogen ions in solution. a neutral solution, neither acidic nor basic, has a ph of what?
[ "0", "7", "8", "6" ]
B
dissociated ions. It is a dynamic equilibrium because acid and base molecules are constantly dissociating into ions and reassociating into neutral molecules. The pH scale is a scale used to express the concentration of hydrogen ions in solution. A neutral solution, neither acidic nor basic, has a pH of 7. Acidic soluti...
sciq
sciq_01_08738
What is the term for the intentional release or spread of agents of disease?
[ "plague", "diversion", "bioterrorism", "pandemic" ]
C
Bioterrorism is the intentional release or spread of agents of disease.
ARC-Easy
arc_04_01790
A star is a large astronomical body that
[ "reflects light.", "condenses light.", "emits light.", "absorbs light." ]
C
null
math_qa
mathqa_03_03618
convert the 11 / 36 m / s into kilometers per hour ?
[ "2.9 kmph", "1.1 kmph", "1.3 kmph", "1.2 kmph" ]
B
"11 / 36 m / s = 11 / 36 * 18 / 5 = 11 / 10 = 1.1 kmph . answer : b"
sciq
sciq_01_06839
What is caused by bodies sliding over rough surfaces?
[ "vibration", "heat loss", "tension", "friction" ]
D
Friction is caused by bodies sliding over rough surfaces.
math_qa
mathqa_03_02746
how many integers between 400 and 1000 are there such that their unit digit is odd ?
[ "250", "150", "300", "400" ]
C
there are 600 numbers from 401 to 1000 ( inclusive ) . half of the numbers are odd , so there are 300 odd numbers . the answer is c .
openbookqa
obqa_02_04898
Which likely would win in a race?
[ "a slug", "a sardine", "an Olympic swimmer", "an orca" ]
D
large fins can be used to move quickly through water
math_qa
mathqa_03_02976
the average age of 19 students in a group is 17 years . when teacher ’ s age is included to it , the average increases by one . what is the teacher ’ s age in years ?
[ "36", "37", "38", "can not be determined" ]
B
"age of the teacher = ( 20 × 18 – 19 × 17 ) years = 37 years . answer b"
sciq
sciq_01_09849
What is a byproduct from the combustion of fossil fuels like coal and gasoline?
[ "aluminum oxide", "carbon monoxide", "nitrogen dioxide", "alcohol" ]
C
The brown color is from nitrogen dioxide gas. Nitrogen dioxide is a byproduct from the combustion of fossil fuels like coal and gasoline.
ARC-Challenge
arc_04_02846
What do the energy resources uranium and coal have in common?
[ "They both are formed from the remains of dead organisms.", "They both are acquired by mining the lithosphere.", "They both release energy through combustion.", "They both generate radioactive wastes." ]
B
null
sciq
sciq_01_10662
What are the sporophytes in ferns?
[ "spores", "cycles", "leafy plants", "leaves" ]
C
sciq
sciq_01_08358
What is the basic unit of matter?
[ "atom", "dark material", "neutron", "nucleus" ]
A
The basic unit of matter is an atom ( Figure below ). At the center of an atom is its nucleus . Protons are positively charged particles in the nucleus. Also in the nucleus are neutrons with no electrical charge. Orbiting the nucleus are tiny electrons. Electrons are negatively charged. An atom with the same number of ...
sciq
sciq_01_01190
What type of relationship is it when one variable increases the other variable decreases?
[ "divergence", "curve", "inverse", "regression" ]
C
The relationship between mass and acceleration is different. It is an inverse relationship. In an inverse relationship, when one variable increases, the other variable decreases. The greater the mass of an object, the less it will accelerate when a given force is applied. For example, doubling the mass of an object res...
sciq
sciq_01_05159
Present-day plants that have a complex vascular tissue system are called what kind of plants?
[ "vasuluar plants", "pinworm plants", "vasculated plants", "cirulatory plants" ]
A
sciq
sciq_01_08995
What can be switched off by a protein called the trp repressor?
[ "the operon", "the chaperone protein", "the cytokine", "the genetic precursor" ]
A
medmcqa
medmcqa_05_02952
Dose dependant least neurotoxicity is found in
[ "Cisplatin", "Bleomycin", "Doxorubicin", "Vinblastin" ]
B
i.e. (Bleomycin): (527-H17th)DOXORUBICIN (525-H17th)* Predictable myelosuppression* Alopecia, nausea, mucositis* Cardiotoxicy in the form of atrial and ventricular dysarrhythmias* Powerful vesicant with necrosis of tissue apparent 4-7 days after an extravasation* Dexrazoxane is an antidote to doxorubicin-induced extrav...
math_qa
mathqa_03_02199
in a group of 22 boys , 13 play basketball and 15 play football . 3 of the boys play neither . how many play both ?
[ "18", "20", "21", "22" ]
A
18 boys play something . if b play both , then 13 + 15 - b = 18 answer is a
ARC-Easy
arc_04_02056
Sterling silver is a combination of silver and copper. Which of the following is also a combination of two or more metals?
[ "aluminum.", "lead.", "gold.", "brass." ]
D
null
medmcqa
medmcqa_05_03619
Which is a spinal poison:
[ "Strychnine", "Organophosphorus", "Oleander", "Cannabis" ]
A
Strychnine
sciq
sciq_01_02319
What occurs when the pancreas doesn’t make enough insulin or else the body’s cells are resistant to the effects of insulin?
[ "colitis", "diabetes", "anemia", "hepatitis" ]
B
Diabetes is another type of noninfectious disease. Diabetes occurs when the pancreas doesn’t make enough insulin or else the body’s cells are resistant to the effects of insulin. Insulin is a hormone that helps cells absorb glucose from the blood.
math_qa
mathqa_03_03636
tanks a and b are each in the shape of a right circular cylinder . the interior of tank a has a height of 5 meters and a circumference of 4 meters , and the interior of tank b has a height of 8 meters and a circumference of 10 meters . the capacity of tank a is what percent of the capacity of tank b ?
[ "10 %'", "80 %'", "100 %'", "120 %'" ]
A
for a , r = 4 / 2 pi . its capacity = ( 2 pi ) ^ 2 * 5 = 20 pi for b , r = 10 / pi . its capacity = ( 5 pi ) ^ 2 * 8 = 200 pi a / b = 20 pi / 200 pi = 0.1 a
openbookqa
obqa_02_01225
What does the digestive system break down into simple substances?
[ "metals", "stones", "plastic food", "nutriment" ]
D
the breaking down of food into simple substances occurs in the digestive system
medmcqa
medmcqa_05_00388
Hanging causes injury to: JIPMER 14
[ "Carotid aery", "Esophagus", "Trachea", "Veebral aery" ]
A
Ans. Carotid aery
sciq
sciq_01_01965
Which is the active ingredient of cereal crop disease, ergot?
[ "lysergic acid", "amino acid", "pixelation acid", "byblis acid" ]
A
Plant Parasites and Pathogens The production of sufficient good-quality crops is essential to human existence. Plant diseases have ruined crops, bringing widespread famine. Many plant pathogens are fungi that cause tissue decay and eventual death of the host (Figure 24.25). In addition to destroying plant tissue direct...
sciq
sciq_01_02413
Upon entering the vestibular canal, the pressure waves push down on what duct?
[ "the regrowth", "the cochlear", "the implant", "the bile" ]
B
sciq
sciq_01_00376
How many types of bosons are there?
[ "three", "one", "five", "four" ]
D
There are four known types of bosons, which are force-carrying particles. Each of these bosons carries a different fundamental force between interacting particles. In addition, there is a particle which may exist, called the "Higgs Boson", which gives objects the masses they have. Some types of bosons have mass; others...
sciq
sciq_01_06676
What is the term for a substance that causes the speed of a reaction to increase?
[ "catalyst", "indicate", "monite", "component" ]
A
A catalyst is a substance that increases the speed of a reaction. Overall, a catalyst is not a reactant and is not used up, but it still affects how fast a reaction proceeds. However, a catalyst does not affect the extent or position of a reaction at equilibrium. It helps a reaction achieve equilibrium faster.
openbookqa
obqa_02_04106
Wind can
[ "feel emotions like love", "turn a statue to dust", "raise a family of four", "have a baby child" ]
B
wind carries sand from one place to another place
openbookqa
obqa_02_02353
Instinctive behavior may be viewed when observing
[ "freshly hatched turtles seeking water", "birds being trained to play games", "cats being fed salami", "dogs riding in cars" ]
A
An example of an instinctive behavior is a baby bird pecking at its shell to hatch
medmcqa
medmcqa_05_04407
A child presents with perioral rash and pigmentation of palmar area. What is the cause?
[ "Selenium deficiency", "Manganese deficiency", "Copper deficiency", "Zinc deficiency" ]
D
Option A: Selenium deficiency shows cardiomyopathy. Option B: Manganese deficiency presents with hypercholesterolemia and weight loss. Option C: Copper deficiency leads to neurological manifestations.
medmcqa
medmcqa_05_01424
Which of the following fluorinated anaesthetics corrodes metal in vaporizers and breathing systems ?
[ "Sevoflurane", "Enflurane", "Isoflurane", "Halothane" ]
D
In the presence of moisture halothane attacks metals (tin, brass and aluminum) in vaporisers and circuits.
sciq
sciq_01_10990
What type of particles can a beta particle be?
[ "cytoplasm or positron", "electron or positron", "anode or positron", "diode or positron" ]
B
medmcqa
medmcqa_05_01110
Person is not able look down. Which extra ocular muscle is affected:
[ "Superior oblique", "Inferior oblique", "Superior rectus", "Lateral rectus" ]
A
Ans. (a) Superior obliqueRef: A.K. Khurana 6th ed. / 337-39* The function of superior oblique is quite contrary to its name. Its action is depression of eyeball, which helps to see down.* Its yoke muscle is inferior rectus, which also has the similar function as superior oblique.* There are 9 Gaze:# Primary : Straight#...
medmcqa
medmcqa_05_01239
A 22 year old female was brought to OPD with loss of speech from 2 days after her husband has slapped her. On examination cough reflex and laryngeal reflex were normal. The most probable diagnosis:
[ "Somatization disorder", "Conversion disorder", "Dissociative fugue", "Depersonalization" ]
B
Conversion disorder is characterized by symptoms produced due to unconscious conflicts in the mind, that arise after a stressful event.
medmcqa
medmcqa_05_02706
A patient comes in complaining that she cannot flex her hand at the joint marked by a black arrow in the diagram. Which of the following muscles appear(s) to be paralyzed on fuher examination of her finger?
[ "Palmar interossei", "Dorsal interossei", "Flexor digitorum profundus", "Flexor digitorum superficialis" ]
D
The flexor digitorum superficialis muscle flexes the proximal interphalangeal joints. The flexor digitorum profundus muscle flexes the Distal interphalangeal joints (DIP joints) The palmar and dorsal interossei and lumbricals can flex metacarpophalangeal joints and extend the interphalangeal joints. The palmar inteross...
math_qa
mathqa_03_01418
wink , inc . follows a certain procedure that requires two tasks to be finished independently in order for a job to be done . on any given day , there is a 2 / 3 probability that task 1 will be completed on time , and a 3 / 5 probability that task 2 will be completed on time . on a certain day , what is the probability...
[ "4 / 15", "3 / 40", "13 / 40", "7 / 20" ]
A
"p ( 1 and not 2 ) = 2 / 3 * ( 1 - 3 / 5 ) = 4 / 15 . answer : a ."
medmcqa
medmcqa_05_04990
Vitamin B is absorbed from which pa of intestine
[ "Jejunum", "Ileum", "Duodenum", "Caecum" ]
B
Vitamin B12 is predominantly absorbed from ileum Ref: guyton and hall textbook of medical physiology 12 edition
sciq
sciq_01_09813
Similarity that results from common ancestry is known as what?
[ "homology", "heterogeny", "duality", "affinity" ]
A
sciq
sciq_01_02023
Mars appears red because of large amounts of which element in the soil?
[ "carbon", "iron", "mercury", "coal" ]
B
Viewed from Earth, Mars is red. This is due to large amounts of iron in the soil. The ancient Greeks and Romans named the planet Mars after the god of war because the planet's red color reminded them of blood. Mars has only a very thin atmosphere made up mostly of carbon dioxide.
sciq
sciq_01_08017
What term is used to describe animals with three germ layers?
[ "triplegerm", "multilayer", "sporozoans", "triploblasts" ]
D
Watch this video (http://openstaxcollege. org/l/symmetry2) to see a quick sketch of the different types of body symmetry. Layers of Tissues Most animal species undergo a layering of early tissues during embryonic development. These layers are called germ layers. Each layer develops into a specific set of tissues and or...
openbookqa
obqa_02_04761
If something has a membrane within another thing, it is likely
[ "a marker", "a dark hole", "a house", "able to cry" ]
D
the cell membrane provides support for a cell
math_qa
mathqa_03_03370
two employees x and y are paid a total of rs . 638 per week by their employer . if x is paid 120 percent of the sum paid to y , how much is y paid per week ?
[ "s . 250", "s . 280", "s . 290", "s . 299" ]
C
"let the amount paid to x per week = x and the amount paid to y per week = y then x + y = 638 but x = 120 % of y = 120 y / 100 = 12 y / 10 ∴ 12 y / 10 + y = 638 ⇒ y [ 12 / 10 + 1 ] = 638 ⇒ 22 y / 10 = 638 ⇒ 22 y = 6380 ⇒ y = 6380 / 22 = 580 / 2 = rs . 290 c"
sciq
sciq_01_10095
The pull of gravity is expressed as a force of what?
[ "pascal", "joule", "volt", "newtons" ]
D
One force acting on you—and all the other objects on Earth—is gravity. Look at the physics book in the Figure below . Gravity pulls the book downward with a force of 20 Newtons. Why doesn’t the book fall to the ground? The table pushes upward on the book with the same amount of force. The combined force, or net force ,...
sciq
sciq_01_06648
What has a bigger impact on water quality, natural events or human activity?
[ "water quality", "all of the above", "natural events", "human activity" ]
D
Natural events, like storms, volcanic eruptions and earthquakes can cause major changes in water quality. But human-caused contaminants have a much greater impact on the quality of the water supply. Water is considered polluted either when it does not support a human use, like clean drinking water, or a use for other a...