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openbookqa
obqa_02_03395
pushing an object requires
[ "studying", "dancing", "singing", "exherted effort" ]
D
pushing an object requires force
sciq
sciq_01_05459
What is the first cell of a new organism?
[ "seed", "zygote", "nucleus", "egg" ]
B
The new cell is stimulated with an electric shock and embryo development begins, as if it were a normal zygote . The zygote is the first cell of a new organism.
sciq
sciq_01_00857
Atmospheric pressure is low in what anatomically named part of a hurricane?
[ "mouth", "leg", "nose", "eye" ]
D
Atmospheric pressure is low in the eye of a hurricane. In a 1979 hurricane in the Pacific Ocean, a pressure of 0.859 atm was reported inside the eye. What is this pressure in torr?.
sciq
sciq_01_02233
What type of behavior is most flexible?
[ "innate behavior", "learned behavior", "adaptation", "reflex behavior" ]
B
Just about all human behaviors are learned. Learned behavior is behavior that occurs only after experience or practice. Learned behavior has an advantage over innate behavior : it is more flexible. Learned behavior can be changed if conditions change. For example, you probably know the route from your house to your sch...
ARC-Challenge
arc_04_03105
Which of these has the greatest capacity for storing thermal energy from the Sun?
[ "air", "land", "oceans", "plants" ]
C
null
sciq
sciq_01_11327
The term ion applies to entire molecules that are?
[ "magnetic", "neutrally charged", "positively charged protons", "electrically charged" ]
D
openbookqa
obqa_02_04489
Some animals use rocks as a means of what when there is bad weather?
[ "nothing", "Deaf", "safeguarding themselves", "cheese" ]
C
rocks are a source of shelter for small animals in an environment
medmcqa
medmcqa_05_02309
"Tear drop" sign on X-ray PNS is seen in
[ "Blow out fracture of the floor of the orbit", "Comminuted fracture of the maxilla", "Fracture of the nasal bone", "Fracture of the mandible" ]
A
Ans. a (Blow out fracture of the floor of the orbit) (Ref. Grainger Diagnostic Rad 4th/2527; Ref . Q. 159. Of MH-2207)BLOW-OUT FRACTURE is caused by fracturing of the orbital walls with herniation of orbital contents and subsequent tethering of the globe, resulting in pain and diplopia. It usually involves the orbital ...
openbookqa
obqa_02_00475
Which of these items was able to keep things cool thanks to electrical conversion?
[ "magic carpet", "snowy road", "light bulb", "table fan" ]
D
electrical devices convert electricity into other forms of energy
sciq
sciq_01_06363
In a fuel cell, energy is not stored; electrical energy is provided by what?
[ "consumption reaction", "carbon reaction", "chemical reaction", "fusion reaction" ]
C
called an alkaline battery when adapted to operate under alkaline conditions. Button batteries have a high output-to-mass ratio; lithium–iodine batteries consist of a solid electrolyte; the nickel– cadmium (NiCad) battery is rechargeable; and the lead–acid battery, which is also rechargeable, does not require the elect...
sciq
sciq_01_08766
What types of energy is released during a chemical reaction?
[ "magnetism, electricity, light", "heat, electricity, light", "human, magnetic, electrical", "temperature , electricity , light" ]
B
All chemical reactions involve energy. Some chemical reactions consume energy, whereas other chemical reactions release energy. Chemical reactions can be either spontaneous, which do not require an input of energy, or non-spontaneous, which does require an input of some type of energy. Energy may be in the form of heat...
math_qa
mathqa_03_00727
what is the positive difference between the sum of the squares of the first 8 positive integers and the sum of the prime numbers between the first square and fourth square ?
[ "161", "162", "163", "164" ]
C
"forget conventional ways of solving math questions . in ps , ivy approach is the easiest and quickest way to find the answer . the sum of the squares of the first 4 positive integers = 1 ^ 2 + 2 ^ 2 + 3 ^ 2 + . . . + 8 ^ 2 = 204 the sum of the prime numbers between the first square ( = 1 ) and fourth square ( = 16 ) =...
sciq
sciq_01_03321
What type of bounded nucleus do protists have?
[ "membrane", "Ribosomes", "Mitochondrion", "Endoplasmic reticulum" ]
A
ARC-Easy
arc_04_00518
A decomposer is an organism that
[ "preys on other animals", "eats only plants", "recycles nutrients", "uses sunlight to make food" ]
C
null
sciq
sciq_01_10321
What is another name for a broad explanation that is supported by a great deal of evidence?
[ "theory", "conjecture", "concept", "hypothesis" ]
A
A : A theory is needed to explain gravity. In science, a theory is a broad explanation that is supported by a great deal of evidence.
sciq
sciq_01_09654
When land used for mining or other purposes is restored to its natural state, what do you call the process, which is often mandated by law?
[ "irrigation", "reclamation", "removal", "urban renewal" ]
B
U. S. law states that once mining is complete, the land must be restored to its natural state. This process is called reclamation . A pit may be refilled with dirt. It may be filled with water to create a lake. The pits may be turned into landfills. Underground mines may be sealed off or left open as homes for bats. Th...
sciq
sciq_01_08868
What waves do radio and television use?
[ "radio waves", "gamma waves", "sound waves", "light waves" ]
A
Radio waves are electromagnetic waves with the longest wavelengths, lowest frequencies, and least amount of energy. They are used for radio and television broadcasts and many other purposes.
ARC-Easy
arc_04_01570
Fires in forests from lightning rid the forest of dead branches and leaves. If the trees survive and the soil remains intact, the forest will experience regrowth to its climax state by which process?
[ "tropism", "succession", "gradualism", "eutrophication" ]
B
null
math_qa
mathqa_03_02137
for any integer n greater than 1 , n * denotes the product of all the integers from 1 to n , inclusive . how many prime numbers r are there between 6 * + 2 and 6 * + 6 , inclusive ?
[ "none", "one", "two", "three" ]
A
"given that n * denotes the product of all the integers from 1 to n , inclusive so , 6 * + 2 = 6 ! + 2 and 6 * + 6 = 6 ! + 6 . now , notice that we can factor out 2 our of 6 ! + 2 so it can not be a prime number , we can factor out 3 our of 6 ! + 3 so it can not be a prime number , we can factor out 4 our of 6 ! + 4 so...
math_qa
mathqa_03_03418
5 n + 2 > 12 and 7 n - 12 < 44 ; n must be between which numbers ?
[ "2 and 8", "2 and 6", "0 and 9", "2 and 7" ]
A
"5 n + 2 > 12 5 n > 10 n > 2 7 n - 12 < 44 7 n < 56 n < 8 so n must be between 2 and 8 2 < n < 8 correct answer a"
sciq
sciq_01_03517
How do organisms grow and repair themselves?
[ "cell division", "symbosis", "mutation", "cell death" ]
A
Cell division is how organisms grow and repair themselves. It is also how many organisms produce offspring. For many single-celled organisms, reproduction is a similar process. The parent cell simply divides to form two daughter cells that are identical to the parent. In many other organisms, two parents are involved, ...
medmcqa
medmcqa_05_00743
What is the most common reason of a mid Vesicovaginal Fistula?
[ "Radiation injury", "Cervical cancer", "Obstructed labour", "Forceps delivery" ]
C
Most Common fistula in India is obstetric fistula because of obstructed labor in mid vesicovaginal area. Forceps injury and vaginal hysterectomy causes high vesicovaginal fistula. Radiation injuries causes low vesicovaginal fistula.
math_qa
mathqa_03_04137
of the two square fields , the area of the one is 1 hectare , while anothe one is broader by 1 % . there differences in area is :
[ "201 m ( power", "220 m ( power", "211 m ( power", "219 m ( power" ]
A
area of one square field = 10000 m ( power ) 2 10000 × 1 = 10000 side of this field = √ 10000 m = 100 m side of another square = 101 m difference of areas = [ 101 ( power ) 2 - 100 ( power ) 2 ] m ( power ) 2 [ 101 + 100 ] [ 101 - 100 ] m ( power ) 2 ( 201 ) ( 1 ) m 2 = 201 m ( power ) 2 answer is a .
ARC-Easy
arc_04_01908
Which of these uses sound waves to locate underwater objects?
[ "radar", "sonar", "telescope", "microscope" ]
B
null
sciq
sciq_01_03302
What kind of scientists measure percentages of sand, silt, and clay?
[ "soil scientists", "amount scientists", "texture scientists", "petro scientists" ]
A
Soil scientists measure the percentage of sand, silt, and clay in soil. They plot this information on a triangular diagram, with each type of particle at one corner ( Figure below ).
sciq
sciq_01_00264
What keeps the moon orbiting earth?
[ "the Sun", "Coriolis effect", "gravity", "axial tilt" ]
C
Gravity keeps the Moon orbiting Earth. Gravity keeps the planets orbiting the Sun.
openbookqa
obqa_02_02517
If waste is to be avoided, then a box should be
[ "left outside", "burned quickly", "thrown away", "filled repeatedly" ]
D
An example of avoiding waste is using an object more than once
sciq
sciq_01_07431
What are tiny, hair like projections?
[ "actin", "cilia", "fuzz", "spinicles" ]
B
Many mucous membranes are also covered with cilia. These are tiny, hair-like projections. Cilia move in waves and sweep mucus and trapped pathogens toward body openings. You can see this in the diagram in Figure below . When you clear your throat or blow your nose, you remove mucus and pathogens from your body.
medmcqa
medmcqa_05_02832
Hunterian perforators are seen in ?
[ "Upper thigh", "Lower thigh", "Calf", "Mid thigh" ]
D
Ans. is 'd' i.e., Mid thigh
openbookqa
obqa_02_03756
One of the reasons some species go extinct is because predators
[ "have school with them", "tickle and cuddle them", "murder too many of them", "go dancing with them" ]
C
if a new predator begins eating prey then the population of that prey will decrease
math_qa
mathqa_03_02892
the difference between the local value and the face value of 7 in the numeral 32675149 is
[ "69990", "69993", "70000", "77000" ]
B
"explanation : ( local value of 7 ) - ( face value of 7 ) = ( 70000 - 7 ) = 69993 b )"
openbookqa
obqa_02_01500
Desert lizards may sometimes appear as
[ "buildings", "rock particles", "trees", "cement" ]
B
some lizards live in desert habitats
sciq
sciq_01_01148
During a what type of reaction do chemical changes take place?
[ "biological", "nuclear", "toxic", "chemical" ]
D
A: During a chemical reaction, chemical changes take place. Some chemical bonds break and new chemical bonds form.
medmcqa
medmcqa_05_02755
Most common cause of brain metastases
[ "Lung", "Liver", "Breast", "Melanoma" ]
A
Origin PercentageLung 40Breast 15Melanoma 10Renal/genitourinary 10Other/unknown 25Ref: Bailey and love 27e pg: 664
sciq
sciq_01_09829
What expresses the mass of substance in terms of the volume occupied by the substance?
[ "density", "frequency", "velocity", "diameter" ]
A
Density is an expression of the mass of substance in terms of the volume occupied by the substance.
math_qa
mathqa_03_04705
what is the probability of having 53 fridays in an ordinary year
[ "1 / 5", "1 / 6", "1 / 7", "1 / 8" ]
C
"1 / 7 because 53 friday in ordinary year then 53 * 7 = 371 ( 53 / 371 = 1 / 7 ) answer : c"
openbookqa
obqa_02_00352
If one mineral can scratch another mineral then that other mineral is softer than that one mineral, as can be tested with
[ "a diamond and steel", "a rock and glass", "a diamond and agate", "a ruby and salt" ]
C
if one mineral can scratch another mineral then that other mineral is softer than that one mineral
openbookqa
obqa_02_02537
Seasons occur because long ago something huge slammed into our planet and now its axis is
[ "lazy", "jaded", "slanted", "stilted" ]
C
Earth 's tilt on its axis causes seasons to occur
openbookqa
obqa_02_00978
Do objects change size with distance for Stevie Wonder?
[ "Yes", "No", "sometimes", "maybe" ]
B
as distance to an object increases , that object will appear smaller
ARC-Challenge
arc_04_02686
Which is a possible disadvantage of using flowing water to produce electricity?
[ "ecosystem damage and loss of land", "reduced carbon dioxide emission", "only suitable for industrial use", "creates reservoirs" ]
A
null
sciq
sciq_01_05013
What are responsible for removing excess h+ ions from the blood?
[ "liver nodes", "intestinal walls", "kidneys", "stomach chambers" ]
C
The kidneys are responsible for removing excess H+ ions from the blood. If the kidneys fail, what would happen to blood pH and to hemoglobin affinity for oxygen? Factors That Affect Oxygen Binding The oxygen-carrying capacity of hemoglobin determines how much oxygen is carried in the blood. In addition to P O , 2 other...
sciq
sciq_01_04962
The earth’s biomes are categorized into two major groups named what?
[ "icelandic and aquatic", "aquatic and galactic", "terrestrial and aquatic", "terrestrial and galactic" ]
C
44.3 | Terrestrial Biomes By the end of this section, you will be able to: • Identify the two major abiotic factors that determine terrestrial biomes • Recognize distinguishing characteristics of each of the eight major terrestrial biomes The Earth’s biomes are categorized into two major groups: terrestrial and aquatic...
openbookqa
obqa_02_03009
As the use of alt fuels increases, the use of what will decrease?
[ "reusable fuels used for heating", "fuels of the non reuse type power", "fish swimming upstream in river", "more hydro-electric power altogether" ]
B
something reusable can be used more than once
sciq
sciq_01_09979
Both endotherms and ectotherms control what through behavioral responses to changes in the environment?
[ "sleep cycles", "body temperature", "hormones", "gas temperature" ]
B
sciq
sciq_01_06021
What type of animals breathe with gills as larvae and with lungs as adults?
[ "amphibians", "reptiles", "mammals", "insects" ]
A
Amphibians breathe with gills as larvae and with lungs as adults. They have a three-chambered heart and relatively complex nervous system.
sciq
sciq_01_07658
What are the two types of vascular tissue?
[ "xylem and phloem", "phloem and phlegm", "ectoderm and phloem", "cytoplasm and ectoplasm" ]
A
math_qa
mathqa_03_02549
an article costing rs . 160 is sold at 20 % discount on a mark - up price . what is the selling price after discount ?
[ "106", "116", "128", "136" ]
C
160 * 80 / 100 = 128 answer : c
sciq
sciq_01_06592
Phosphate groups are found within phospholipids and what else?
[ "amino acids", "carotenoids", "hydrocarbon chains", "nucleotides" ]
D
Phosphate groups are found within phospholipids and nucleotides.
sciq
sciq_01_01772
What is a process where some substances called reactants change chemically into different substances called products?
[ "carbon reaction", "crystals reaction", "chemical reaction", "non-chemical reaction" ]
C
The student athlete in Figure below is practically flying down the track! Running takes a lot of energy. But you don’t have to run a race to use energy. All living things need energy all the time just to stay alive. The energy is produced in chemical reactions. A chemical reaction is a process in which some substances,...
sciq
sciq_01_06608
The cell wall of plants is made up of a complex carbohydrate that is a polymer of what sugar?
[ "glucose", "sucrose", "fructose", "insulin" ]
A
complex carbohydrate that is a polymer of glucose and that makes up the cell wall of plants.
math_qa
mathqa_03_01680
the duplicate ratio of 2 : 3 is ?
[ "4 : 9", "1 : 4", "1 : 8", "1 : 18" ]
A
"2 ^ 2 : 3 ^ 2 = 4 : 9 answer : a"
sciq
sciq_01_10687
What bodily substance is formed from cells, and in turn helps make up organs?
[ "tissues", "muscles", "tendons", "ligaments" ]
A
Organisms are organized in the microscopic level from atoms up to cells. The matter is structured in an ordered way. Atoms are arranged into molecules, then into macromolecules, which make up organelles, which work together to form cells. Beyond this, cells are organized in higher levels to form entire multicellular or...
openbookqa
obqa_02_04704
Plants and trees suck up carbon dioxide, so if trees are cut down, carbon levels will
[ "cry", "fly", "escalate", "go down" ]
C
as the population of plants decreases , carbon in the atmosphere will increase
sciq
sciq_01_00822
What process is used to chemically and mechanically break down the food you eat into smaller parts?
[ "absorption", "filtration", "digestion", "regression" ]
C
Digestion and Absorption Digestion is the mechanical and chemical break down of food into small organic fragments. It is important to break down macromolecules into smaller fragments that are of suitable size for absorption across the digestive epithelium. Large, complex molecules of proteins, polysaccharides, and lipi...
math_qa
mathqa_03_00117
how many integers from 10 to 180 , inclusive , are divisible by 3 but not divisible by 7 ?
[ "45", "49", "50", "52" ]
B
"we should find # of integers divisible by 3 but not by 3 * 7 = 21 . # of multiples of 21 in the range from 10 to 180 , inclusive is ( 168 - 21 ) / 21 + 1 = 8 ; 57 - 8 = 49 . answer : b ."
sciq
sciq_01_10917
Bacterial contamination of foods can lead to digestive problems called what?
[ "butterflies in your stomach", "food poisoning", "the flu", "cancer" ]
B
Bacterial contamination of foods can lead to digestive problems, an illness known as food poisoning . Raw eggs and undercooked meats commonly carry the bacteria that can cause food poisoning. Food poisoning can be prevented by cooking meat thoroughly and washing surfaces that have been in contact with raw meat. Washing...
openbookqa
obqa_02_03397
What are created during the pupa stage in a life cycle?
[ "warmth", "water", "eggs", "hard shells" ]
D
the cocoons being created occurs during the the pupa stage in a life cycle
openbookqa
obqa_02_00617
sunlight is a heat source emitted from
[ "a white dwarf star", "our only yellow star", "a nearby quasar star", "a red giant star" ]
B
the sun is a source of heat called sunlight
sciq
sciq_01_09217
What term describes motion that repeats itself at regular time intervals, such as exhibited by a vibrating guitar string?
[ "apparent motion", "periodic motion", "specific speed", "gravitational pull" ]
B
When you pluck a guitar string, the resulting sound has a steady tone and lasts a long time. Each successive vibration of the string takes the same time as the previous one. We define periodic motion to be a motion that repeats itself at regular time intervals, such as exhibited by the guitar string or by an object on ...
openbookqa
obqa_02_00878
What can build something over millions of years?
[ "a river", "a person", "society", "dinosaurs" ]
A
a canyon forming occurs over a period of millions of years
ARC-Easy
arc_04_01245
Sherry is going to use her computer to draw a three-dimensional box. She wants to be able to specify the exact dimensions and angles and to rotate the box as needed on the screen. Which of the following types of programs would Sherry most likely use for this purpose?
[ "word processing software", "math spreadsheet program", "Internet-based search engine", "computer-aided design program" ]
D
null
openbookqa
obqa_02_02865
When would the days be the longest 1000 miles north of the equator?
[ "the same time that the nights are the longest", "in the month of March", "6 months after Christmas", "in the fall season" ]
C
the amount of daylight is greatest in the summer
sciq
sciq_01_03746
Where are hotspot volcanoes commonly found?
[ "the ocean", "rivers", "streams", "lakes" ]
A
Hotspot volcanoes are better able to penetrate oceanic crust than continental crust. We see many more hotspot volcanoes in the oceans.
medmcqa
medmcqa_05_02927
Which organelle is involved in the case of sphinghomyelin deficiency:
[ "Lysosome", "Nucleus", "Mitochondria", "Cell membrane" ]
A
Ans. (a) LysosomeRef: Harper's Biochemistry, 30th ed. pg. 251* Sphinghomyelin is a major neural tissue component, the core structure of which is formed by ceramide.* It is the only sphingholipid without sugar.* The common sphinghomyelin deficiency is Neiman-Pick disease. The organelle which is involved is the lysosomes...
sciq
sciq_01_02282
What is pluto now called?
[ "meteor", "planet", "dwarf planet", "asteroid" ]
C
If the first three are true but not the fourth, then that object is a dwarf planet . We now call Pluto a dwarf planet. There are other dwarf planets in the solar system. They are Eris, Ceres, Makemake and Haumea. There are many other reasons why Pluto does not fit with the other planets in our solar system.
medmcqa
medmcqa_05_01004
In which of the following, intraocular pressure is very high and inflammation is minimum?
[ "Agute iridocyclitis", "Glaucomatocyclic crises", "Angle closure glaucoma", "Hypeensive uveitis" ]
B
In glaucomatocyclitic crisis there is mild uveitis with severe rise of IOP. It is also known as Posner Schlossman syndrome. Treatment: medical treatment to lower IOP along with a sho course of topical steroids. Ref .khurana page no. 167
sciq
sciq_01_00120
Phosphate-containing ocean sediments form primarily from the bodies of ocean organisms and from their what?
[ "ancestors", "blood", "excretions", "skeletons" ]
C
The Phosphorus Cycle Phosphorus is an essential nutrient for living processes; it is a major component of nucleic acids and phospholipids, and, as calcium phosphate, makes up the supportive components of our bones. Phosphorus is often the limiting nutrient (necessary for growth) in aquatic, particularly freshwater, eco...
medmcqa
medmcqa_05_01748
BRCA- 1 gene is associated with -
[ "Lobular carcinoma", "Mucinous carcinoma", "Tubular carcinoma", "Papillary carcinoma" ]
B
Answer- B. Mucinous carcinomaFamilial cancers (or around 3% of all breast cancer) can be attributed to two highly penetrant autosomal dominant genes BRCA-1 on chromosome 17 (52%) and BRCA-2 on chromosoine 13.
math_qa
mathqa_03_02532
a tank is filled in 10 hours by 3 pipes a , b and c . pipe a is twice as fast as pipe b , and b is twice as fast as c . how much time will pipe b alone take to fill the tank ?
[ "56 hours", "28 hours", "35 hours", "66 hours" ]
C
1 / a + 1 / b + 1 / c = 1 / 10 ( given ) also given that a = 2 b and b = 2 c = > 1 / 2 b + 1 / b + 2 / b = 1 / 10 = > ( 1 + 2 + 4 ) / 2 b = 1 / 10 = > 2 b / 7 = 10 = > b = 35 hours . answer : c
sciq
sciq_01_03187
Urea and carbon dioxide are molecules with how many carbon atoms?
[ "two", "one", "four", "even number" ]
B
sciq
sciq_01_05025
Temperature and what other environmental factor are important in the activity of an enzyme?
[ "color", "ph level", "size", "shape" ]
B
sciq
sciq_01_00966
Nervous tissue consists of just two basic types of nerve cells: neurons and?
[ "white blood cells", "mammalian cells", "glial cells", "red blood cells" ]
C
Although the nervous system is very complex, nervous tissue consists of just two basic types of nerve cells: neurons and glial cells. Neurons are the structural and functional units of the nervous system. They transmit electrical signals, called nerve impulses. Glial cells provide support for neurons. For example, they...
math_qa
mathqa_03_04786
in goshawk - eurasian nature reserve 30 percent of the birds are hawks , and 40 percent of the non - hawks are paddyfield - warblers . if there are 25 percent as many kingfishers as paddyfield - warblers in the reserve , then what percent of the birds w in the nature reserve are not hawks , paddyfield - warblers , or k...
[ "25 %", "35 %", "45 %", "70 %" ]
B
"1 . we are given the following percentages : 30 ( 70 ) , 40 ( 60 ) , 25 ( 75 ) . there are two threads from here . first starts at 30 % and finishes there . second one starts at 70 , then 40 , and then 25 . we need a value that is divisible by 7 , 2 , and 5 at least once . lets pick a number now , say 700 . so say if ...
sciq
sciq_01_03544
How do yeasts reproduce asexually?
[ "by synchronizing", "by merging", "by budding", "by outcropping" ]
C
Yeasts do not produce spores. Instead, they reproduce asexually by budding. Budding is the pinching off of an offspring from the parent cell. The offspring cell is genetically identical to the parent. Budding in yeast is pictured in Figure below .
sciq
sciq_01_00906
What is the body cavity that reptiles have that is involved in reproduction?
[ "hypothalamus", "pristil", "ovules", "cloaca" ]
D
Most reptiles have sexual reproduction with internal fertilization. Reptiles have a body cavity called a cloaca that is involved in reproduction. Sperm or eggs are released into an adult reptile’s cloaca. Males have one or two penises that pass sperm from their cloaca to the eggs in the cloaca of a female, where fertil...
medmcqa
medmcqa_05_03932
Perichondrial ring is -
[ "Seen around foramen magnum", "Seen around epiphyseal plate", "More prominent in adults", "Shear strength increases with age" ]
B
The perichondrial ring of La Croix also surrounds the growth plate circumferentially, similar to perichondrial groove. Perichondrial ring extends towards metaphysis and become continuous with periosteum of metaphysis. With increasing age, perichondrial ring is thinned and its shear resistance (strength) is decreased.
sciq
sciq_01_11380
What warms the base of the mantle creating convection currents there?
[ "the hot core", "molten lava", "mantle soil", "the hot regenerate" ]
A
The hot core warms the base of the mantle, which creates convection currents in the mantle.
medmcqa
medmcqa_05_00565
In cases of Cancer breast with Her-2 neu amplification when will you do FISH?
[ "HER 2 neu 1 +", "HER 2 neu 2+", "Irrespective of Her 2 neu", "HER 2 neu 3+" ]
B
Ans. (b) HER 2 neu 2+(Ref NCCN Guidelines for Cancer breast)* HER 2 Status of the cancer breast is routinely done by IHC study with values from "0 to + l, +2 and +3.* Recently FISH (Fluorescence Insitu Hybridization) is used to detect HER 2 amplification and advised for IHC HER 2 positive cases of values +2 onwards.* 2...
sciq
sciq_01_08356
What forms in the ocean from the seafloor spreading?
[ "underwater volcanoes", "earthquakes", "tsunamis", "new oceanic crust" ]
D
In the oceans, plates move apart at mid-ocean ridges. Lava rises upward, erupts, and cools. Later, more lava erupts and pushes the original seafloor outward. This is seafloor spreading. Seafloor spreading forms new oceanic crust. The rising magma causes the ridge to be buoyant. This is why there is a mountain range run...
medmcqa
medmcqa_05_04723
Complicated crown fracture occur in a patient of age 8 years. Within 12 hours of accident, they reported to the dentist. What could be the line of treatment?
[ "Cvek pulpotomy", "Pulpotomy", "Pulpectomy", "Partial pulpotomy followed by apexogenesis" ]
D
Here, the age of the patient is 8 years that means apex of the traumatised tooth is open. A complicated crown fracture involves enamel, dentin, and pulp. In a situation of a traumatic pulp exposure of a tooth (injuries in which most patients are young  ), the patient typically presents for treatment within 48 hours bec...
medmcqa
medmcqa_05_01595
In a population to prevent Coronary aery disease, changing harmful lifestyles by education is referred to as:-
[ "High risk strategy", "Primary prevention", "Secondary prevention", "Teiary prevention" ]
B
Primary level of prevention: It is action taken prior to onset of disease, which removes the possibility that a disease will ever occur. It signifies 'Intervention in the Pre-pathogenesis phase of a disease / health problem'. Modes of Intervention: Health promotion- Targeted at strengthening the host through a variety ...
math_qa
mathqa_03_00748
a train 500 m long can cross an electric pole in 20 sec and then find the speed of the train ?
[ "87 kmph", "97 kmph", "72 kmph", "90 kmph" ]
D
"length = speed * time speed = l / t s = 500 / 20 s = 25 m / sec speed = 25 * 18 / 5 ( to convert m / sec in to kmph multiply by 18 / 5 ) speed = 90 kmph answer : d"
sciq
sciq_01_05868
What occurs when air masses meet?
[ "earthquakes", "fronts", "tides", "currents" ]
B
Much of the weather occurs at fronts, where air masses meet.
ARC-Easy
arc_04_00095
The continuous changes of a seed to an adult plant that produces seeds is known as a
[ "lunar cycle.", "weekly cycle.", "daily cycle.", "life cycle." ]
D
null
medmcqa
medmcqa_05_00608
What is the most likely diagnosis for this finding detected during esophageal endoscopy?
[ "Adenocarcinoma", "Candidiasis", "Dieulafoy's lesion", "Schatzki ring" ]
A
Answer A. AdenocarcinomaThis nodular abnormality was found to be an early adenocarcinoma in a patient with Barrett's esophagus.
sciq
sciq_01_10384
What type of gas is a harmless gas that living things add to the atmosphere during respiration?
[ "helium", "carbon dioxide", "Hydrogen", "oxygen" ]
B
A: You can tell that they are different compounds from their very different properties. Carbon dioxide is a harmless gas that living things add to the atmosphere during respiration. Carbon monoxide is a deadly gas that can quickly kill people if it becomes too concentrated in the air.
sciq
sciq_01_05953
Where in the female body does egg production take place?
[ "testes", "endometrium", "ovaries", "uterus" ]
C
Egg production takes place in the ovaries. It occurs in several steps:.
math_qa
mathqa_03_00069
in a shop , the profit is 320 % of the cost . if the cost increases by 25 % but the selling price remains constant , approximately what percentage of the selling price is the profit ?
[ "70 %", "50 %", "100 %", "60 %" ]
A
"cp . = rs . 100 . = > profit = rs . 320 , s . p . = rs . 420 . new c . p . = 125 % of rs . 100 = rs . 125 new s . p . = rs . 420 . profit = rs . ( 420 - 125 ) = rs . 295 . req = ( 295 / 420 * 100 ) = = > 70 % answer a"
sciq
sciq_01_05782
Atomic orbitals from different atoms overlap to form what?
[ "plasma orbitals", "space orbitals", "molecular orbitals", "planet orbitals" ]
C
Atomic orbitals from different atoms overlap to form molecular orbitals.
openbookqa
obqa_02_01871
Preferences tend to be
[ "genetic", "learned attributes", "naturally occurring", "taught" ]
B
preferences are generally learned characteristics
sciq
sciq_01_10681
Where does the shoot system get the water and minerals that it depends on?
[ "surrounding plants", "the air", "the seeds", "the soil" ]
D
math_qa
mathqa_03_04801
what decimal fraction is 30 ml of a litre ?
[ ". 3", ". 0003", ". 003", "0.03" ]
D
"answer required fraction = 30 / 1000 = 3 / 100 = . 03 correct option : d"
ARC-Challenge
arc_04_02339
Which process in plants is most similar to sexual reproduction in vertebrates?
[ "cell division", "self-pollination", "cross-pollination", "seed development" ]
C
null
openbookqa
obqa_02_02981
if a spoon was placed outside under our closest star, what could happen to it?
[ "it would shrink smaller", "it would feel warmer to touch", "it would freeze over", "it would become a gas" ]
B
absorbing sunlight causes objects to heat
sciq
sciq_01_06321
Vitamin d is made in the skin when it is exposed to what?
[ "darkness", "sunlight", "water", "dirt" ]
B
Vitamins are organic compounds that the body needs in small amounts to function properly. Humans need 16 different vitamins. Six of them are listed in Table below . Vitamin D is made in the skin when it is exposed to sunlight. Bacteria that normally live in the gut make vitamins B12 and K. All other vitamins must come ...
ARC-Easy
arc_04_00594
A caterpillar changing into a butterfly is an example of
[ "instinct.", "duplication.", "reproduction.", "metamorphosis." ]
D
null
sciq
sciq_01_03926
What is the term for a disease that is not contagious?
[ "noninfectious disease", "common cold", "benign", "uncultured disease" ]
A
Not all diseases are contagious. A disease that is not contagious is called a noninfectious disease. These diseases are not caused by pathogens. Instead, they are likely to have causes such as lifestyle factors, environmental toxins, or gene mutations. Common types of noninfectious diseases include cancer, diabetes, an...
sciq
sciq_01_01956
Ingestive protists extend their cell wall and cell membrane around the food item, forming a what?
[ "protective bubble", "food vacuole", "fuel vacuole", "food pocket" ]
B
Ingestive protists ingest, or engulf, bacteria and other small particles. They extend their cell wall and cell membrane around the food item, forming a food vacuole . Then enzymes digest the food in the vacuole.
sciq
sciq_01_07683
What are ionic compounds that produce hydroxide ions when dissolved in water?
[ "isotopes", "acids", "bases", "enzymes" ]
C
Bases are ionic compounds that produce hydroxide ions when dissolved in water.
medmcqa
medmcqa_05_01736
The most common site for hypeensive bleed is?
[ "Pons", "Putamen", "Frontal lobe", "Thalamus" ]
C
Answer is C (Putamen): The putamen (Basal Ganglia) is the most common site for hypeensive haemorrhage External capsule refers to a thin layer of white matter that separates the lateral pa of lentiform nucleus (putamen) from claustrum and is invariably damaged along with the putamen.