dataset
stringclasses
6 values
id
stringlengths
12
16
question
stringlengths
1
935
choices
listlengths
4
4
answer
stringclasses
4 values
support
stringlengths
0
7.76k
ARC-Easy
arc_04_00223
The formation of the mineral halite is most likely to occur by which process?
[ "the evaporation of seawater", "the hardening of lava in seawater", "the cementing together of sediment particles", "the slow crystallization of magma deep in the crust" ]
A
null
medmcqa
medmcqa_05_04015
The upper 3/4th of vagina develops from -
[ "Mullerian duct", "Wolfian duct", "Sino vaginal bulb", "Endoderm" ]
A
Ans 'a' i.e., Mullerian duct FATE OF THE GENITAL DUCTSI MESONEPHRIC/WOLFFIAN DUCT(main genital duct in males)In mates:o Posterior wall of prostatic urethra proximal to opening of ejaculatory ductso Ureteric bud forming ureter, pelvis, calyces and collecting tubuleso Trigone of bladdero Appendix of epididymiso Vas defer...
medmcqa
medmcqa_05_00602
Most common cause of Neuropathy is
[ "Leprosy", "Guillaine-Barre syndrome", "Amyloidosis", "Diabetes mellitus" ]
D
(D) Diabetes mellitus # DIABETIC NEUROPATHY occurs in 50% of individuals with long standing Type I & Type II DM.> It may manifest as poly neuropathy, mono neuropathy, and/or autonomic neuropathy.> As with other complications of DM, the development of neuropathy corrilates with the duration of diabetes and glycemic cont...
sciq
sciq_01_00868
What regulates the thyroid gland in a body?
[ "positive feedback loop", "normal feedback loop", "upper feedback loop", "negative feedback loop" ]
D
The thyroid gland is regulated by a negative feedback loop. The loop includes the hypothalamus and pituitary gland in addition to the thyroid.
medmcqa
medmcqa_05_03694
Shiga toxin is preduced by-
[ "Enteropathogenic E coli", "Enteroinvasive E coli", "Enterohemorrhagic E coli", "Enterotoxigenic E coli" ]
C
Ans. is 'c' i.e., Enterohemorrhagic E coiiESCHERICHIA COLIAt least six distinct "pathotypes" of intestinal pathogenic E. coli exist:o Enteropathoaenic E. coli [Entcroadherent E. colilIt causes diarrhoea in infants and children usually occuring as institutional out breaks.It does not produce enterotoxin, nor are they in...
sciq
sciq_01_01466
What occurs where the water motion slows?
[ "vapor", "diffusion", "deposition", "erosion" ]
C
Longshore drift continually moves sand along the shore. Deposition occurs where the water motion slows. The smallest particles, such as silt and clay, are deposited away from shore. This is where the water is calmer. Larger particles are deposited onshore. This is where waves and other motions are strongest.
math_qa
mathqa_03_00049
the simple interest on rs . 23 for 3 months at the rate of 5 paise per rupeeper month is
[ "3.45", "4.5", "2.25", "3.21" ]
A
sol . s . i . = rs . [ 23 * 5 / 100 * 3 ] = rs . 3.45 answer a
sciq
sciq_01_08682
What is the collective travel of sheep known as?
[ "den", "load", "herd", "gaggle" ]
C
Like many other animals, sheep travel in herds. The tendency is for each individual sheep to stay with the herd. However, a sheep may sometimes wander off, depending on how strong the attraction is for a particular food or water supply. At other times, a sheep may become frightened and run off. Whether a sheep chooses ...
sciq
sciq_01_07661
Unlike corals, jellyfish spend most of their lives as what?
[ "infants", "cercariae", "pupae", "medusae" ]
D
Unlike corals, jellyfish spend most of their lives as medusae. They live virtually everywhere in the ocean. They are typically carnivores. They prey on zooplankton, other invertebrates, and the eggs and larvae of fish.
openbookqa
obqa_02_04529
Before spring can arrive a squirrels must gather nuts to make it through
[ "December", "rocks", "blankets", "microwaves" ]
A
squirrels gather nuts in the autumn to eat during the winter
medmcqa
medmcqa_05_01533
A 22 year old presents to his physician with hemoptysis and hematuria with basement membrane antibodies.Most likely diagnosis is:
[ "Wagner's Granulomatosis", "Goodpasture's syndrome", "PAN", "Churg-Strauss syndrome" ]
B
Answer is B (Goodpasture's Syndrome)Goodpasture's Syndrome is an autoimmune disease characterized by formation of Anti-Glomerular Basement Membrane Antibodies (Anti-GBM Antibodies) that attack both, Pulmonary Capillaries (Hemoptysis) and the Glomerulus (Hematuria)The association of Hemoptysis and Hematuria along with a...
medmcqa
medmcqa_05_00871
Banana shaped gametocytes in peripheral smear are seen in infection with:
[ "Plasmodium vivax", "Plasmodium malaria", "Plasmodium falciparum", "Plasmodium ovale" ]
C
Banana shaped or crescent shaped gametocytes are seen in P. Falciparum.
medmcqa
medmcqa_05_04511
Number of Milk teeth are
[ "8", "16", "20", "32" ]
C
20 (Deciduous teeth)
sciq
sciq_01_06275
What is the smallest independently functioning unit of a living organism?
[ "proteins", "molecule", "atom", "cell" ]
D
A cell is the smallest independently functioning unit of a living organism. Even bacteria, which are extremely small, independently-living organisms, have a cellular structure. Each bacterium is a single cell. All living structures of human anatomy contain cells, and almost all functions of human physiology are perform...
sciq
sciq_01_04522
What is the study of structure, properties, and interactions of matter?
[ "chemistry", "geology", "biology", "petrology" ]
A
Chemistry is the study of the structure, properties, and interactions of matter. Important concepts in chemistry include physical changes, such as water freezing, and chemical reactions, such as fireworks exploding. Chemistry concepts can answer all the questions on the left page of the notebook in Figure below . Do yo...
openbookqa
obqa_02_01228
A compass
[ "knows orientation", "Tracks People", "Cleans", "Invented in 1905" ]
A
a compass is used to navigate oceans
sciq
sciq_01_10788
One crystalline form of calcium carbonate is the mineral sold as what?
[ "salt", "quartz", "calcite", "basalt" ]
C
In our calculation, we have ignored the reaction of the weakly basic anion with water, which tends to make the actual solubility of many salts greater than the calculated value. Exercise One crystalline form of calcium carbonate (CaCO3) is the mineral sold as “calcite” in mineral and gem shops. The solubility of calcit...
sciq
sciq_01_06138
Interferons are produced in virally infected cells and cause them to secrete signals for surrounding cells to make what?
[ "resist proteins", "Raising Proteins", "overwhelm proteins", "antiviral proteins" ]
D
Chapter 21 1 The three main components are the lymph vessels, the lymph nodes, and the lymph. 3 The bacterium is digested by the phagocyte’s digestive enzymes (contained in its lysosomes). 5 B 7 C 9 A 11 D 13 C 15 B 17 B 19 D 21 D 23 B 25 C 27 B 29 C 31 D 33 A 35 B 37 B 39 The lymph enters through lymphatic capillaries...
medmcqa
medmcqa_05_01776
IFN gamma is secreted by
[ "Cytotoxic cells", "T-helper cells 1", "T-helper cells 2", "CMI" ]
B
TH1 cells produce the cytokine IFN-g, which activates macrophages in the classical pathway. TH2 cells secrete IL-4, IL-5, and IL-13, which recruit and activate eosinophils and are responsible for the alternative pathway of macrophage activation IFNg, or type II interferon, is a cytokine that is critical for innate and ...
openbookqa
obqa_02_03736
The winter solstice is the shortest day in the northern
[ "sky", "parts of Australia", "globes top half", "counties of Tasmania" ]
C
the amount of daylight is least on the winter solstice
sciq
sciq_01_01612
What units are typically used to measure heats of reaction?
[ "kilobytes", "degrees Celsius", "kilojoules", "volts" ]
C
Heats of reaction are typically measured in kilojoules. It is important to include the physical states of the reactants and products in a thermochemical equation as the value of the depends on those states.
sciq
sciq_01_11374
Nearly all fish reproduce sexually and have what?
[ "modified sexes", "flexible sexes", "separate sexes", "single sexes" ]
C
Nearly all fish reproduce sexually and have separate sexes.
sciq
sciq_01_07177
What is a three-dimensional anticline called?
[ "dome", "cyclone", "volcano", "cave" ]
A
In an anticline, rocks arch upward. A three-dimensional anticline is a dome.
medmcqa
medmcqa_05_03543
Graded exposure is useful in:
[ "Schizophrenia", "Phobia", "Suicidal patients", "Schizoaffective disorder" ]
B
Graded exposure is a behavioural technique used in management of phobia. It is similar to systematic desensitization, but the relaxation component is missing and the graded exposure happens in the real world than therapeutic settings. The exposure is hierarchical from less anxiety provoking to higher anxiety producing ...
ARC-Easy
arc_04_00287
Which trait does a puppy inherit from its parents?
[ "fur color and pattern", "obedience to commands", "food brand preferences", "affection for a specific home" ]
A
null
sciq
sciq_01_03731
What speeds up chemical reactions inside cells?
[ "nucleus", "catalysts", "inhibitors", "electrodes" ]
B
Living things depend on catalysts to speed up many chemical reactions inside their cells. Catalysts in living things are called enzymes. Enzymes may be extremely effective. A reaction that takes a split second to occur with an enzyme might take billions of years without it!.
medmcqa
medmcqa_05_01630
Long acting barbiturate is ?
[ "Thiopentone", "Secobarbitone", "Phenobarbitone", "Pentobarbitone" ]
C
Ans. is 'c' i.e., Phenobarbitone Long acting barbiturates -4 Phenobarbitone, Mephobarbitone. Sho acting barbiturates-4 Butobarbitone, secobarbitone, Pentobarbitone. Ultrasho acting -4 Thiopentone, Methohexitone, Hexobarbitone.
medmcqa
medmcqa_05_00231
If convulsions are present, which vaccine should not be given?
[ "DPT", "Oral Polio", "BCG", "Tetanus toxoid" ]
A
(Refer: K. Park's Textbook of Preventive and Social Medicine, 24th edition, pg no: 172)
sciq
sciq_01_03953
A globe is the best way to make a map of what?
[ "a city", "solar system", "whole earth", "a continent" ]
C
Earth is a sphere and so is a globe. A globe is the best way to make a map of the whole Earth. Because both the planet and a globe have curved surfaces, the sizes and shapes of countries are not distorted. Distances are true to scale. ( Figure below ).
ARC-Challenge
arc_04_03116
Of these research projects, which is the best choice for a student who is interested in environmental issues to study?
[ "making cars run on less fuel", "finding more sites for copper mines", "making ocean liners bigger and faster", "replacing human workers with robots" ]
A
null
sciq
sciq_01_11351
What are changes in membrane potential that vary continuously with the strength of a stimulus are known as?
[ "graded potentials", "kinetic energy", "variable potentials", "reverse potentials" ]
A
ARC-Challenge
arc_04_03220
A species of bird has not been seen since the 1900s and is considered extinct. Which evidence would best disprove the claim that the bird is extinct?
[ "A bird watcher makes a sketch of the bird.", "A scientist discovers fossil remains of the bird.", "A researcher takes a photograph of the bird.", "A park ranger finds a suitable habitat for the bird." ]
C
null
math_qa
mathqa_03_00247
selling an kite for rs . 30 , a shop keeper gains 30 % . during a clearance sale , the shopkeeper allows a discount of 10 % on the marked price . his gain percent during the sale is ?
[ "8 %", "10 %", "11 %", "17 %" ]
D
"explanation : marked price = rs . 30 c . p . = 100 / 130 * 30 = rs . 23.07 sale price = 90 % of rs . 30 = rs . 27 required gain % = 3.92 / 23.07 * 100 = 17 % . answer : d"
sciq
sciq_01_09641
How many valence electrons does carbon have?
[ "four", "five", "two", "one" ]
A
Carbon has four valence electrons, so it can achieve a full outer energy level by forming four covalent bonds. When it bonds only with hydrogen, it forms compounds called hydrocarbons.
sciq
sciq_01_04142
The structure of a neuron allows it to rapidly transmit nerve impulses to other what?
[ "proteins", "limbs", "muscles", "cells" ]
D
The structure of a neuron allows it to rapidly transmit nerve impulses to other cells.
medmcqa
medmcqa_05_04993
1st symptom to respond to IV Thiamine in Wernicke's encephalopathy is?
[ "Opthalmoplegia", "Sensory Ataxia", "Vestibular ataxia", "Global confusion" ]
A
Wernicke's encephalopathy * Global Confusion * Ophthalmoplegia: VI N. * Ataxia - Rx- IV Thiamine -First to respond to treatment - Ophthalmoplegia
medmcqa
medmcqa_05_02604
Definition of rape is:
[ "Intercourse with a girl other than wife 16 years of age", "Intercourse with wife below 16 years of age", "Intercourse with wife against her consent", "Intercourse with a prostitute" ]
A
Intercourse with a girl other than wife 16 years of age
math_qa
mathqa_03_02185
a fruit seller sells mangoes at the rate of rs . 13 per kg and thereby loses 25 % . at what price per kg , he should have sold them to make a profit of 15 % ?
[ "rs . 11.81", "rs . 19.93", "rs . 12.25", "rs . 12.31" ]
B
"solution 75 : 13 = 115 : x x = ( 13 ã — 115 / 75 ) = rs . 19.93 hence , s . p per kg = rs . 19.93 answer b"
sciq
sciq_01_11419
At how many places does points source pollution enter water?
[ "two", "three", "one", "four" ]
C
Point source pollution enters water at just one place. For example, it might enter a stream through a pipe. Non-point source pollution enters water everywhere. It is carried by runoff.
sciq
sciq_01_02861
The first consumption of breast milk or formula floods the baby's gastrointestinal tract with what?
[ "beneficial bacteria", "enzymes", "hemoglobin", "nerves" ]
A
Gastrointestinal and Urinary Adjustments In adults, the gastrointestinal tract harbors bacterial flora—trillions of bacteria that aid in digestion, produce vitamins, and protect from the invasion or replication of pathogens. In stark contrast, the fetal intestine is sterile. The first consumption of breast milk or form...
sciq
sciq_01_05752
What is one method to observe nebulae?
[ "mirror", "microscope", "telescope", "kaleidoscope" ]
C
Nebulae can be spotted with the naked eye or simple telescopes.
openbookqa
obqa_02_01397
A tortoise died many years ago, but it is easy to tell that what was left behind was from a tortoise because in the rock there are
[ "muscles", "skeletal system", "organs", "candy pieces" ]
B
organisms can be preserved in sedimentary rock
ARC-Easy
arc_04_00802
Which of the following statements best explains why earthquakes occur more frequently in California than in Massachusetts?
[ "The rock found in California is igneous, but the rock found in Massachusetts is sedimentary.", "California is located on the boundary of two crustal plates, but Massachusetts is not.", "The rock under California is soft, but the rock under Massachusetts is hard.", "California is located on a continental plat...
B
null
ARC-Easy
arc_04_01578
Some birds build nests in the spring. This nest building is a seasonal adaptation that occurs to help the birds
[ "fly south", "find food", "protect their young", "survive the winter" ]
C
null
openbookqa
obqa_02_01545
Meadow vales are
[ "carnivores", "hard of hearing", "very large", "potatoes" ]
B
meadow voles eat plants
sciq
sciq_01_04261
What is the preferred food for almost all primates except for humans?
[ "fruit", "wheat", "corn", "grass" ]
A
Fruit is the preferred food for almost all primates except humans. However, most primate species are omnivorous and consume a variety of plant and animal foods. For example, they may eat leaves, seeds, bird eggs, insects, and other small animals. Chimpanzees may band together and hunt for animals to kill and eat. They ...
sciq
sciq_01_05504
How many orders of magnitudes bigger is the electric force?
[ "33", "39", "36", "45" ]
B
and . The electric force is 39 orders of magnitudes bigger.
openbookqa
obqa_02_02362
A tree falls down in a yard, and the people who live there liked the shade the tree provided. They can regain their shade by
[ "planting flowers", "making money", "acquiring seeds", "tilling gardens" ]
C
a tree can be replaced by planting a new tree
sciq
sciq_01_05290
What were the first living things to evolve on earth?
[ "eukaryotes", "carbon", "prokaryotes", "DNA" ]
C
Prokaryotes were the first living things to evolve on Earth, probably around 3.8 billion years ago. They were the only living things until the first eukaryotic cells evolved about 2 billion years ago. Prokaryotes are still the most numerous organisms on Earth.
sciq
sciq_01_02741
What is the term for an amount of force pushing against a given area?
[ "pressure", "resistance", "mass", "force" ]
A
Gas particles are constantly moving and bumping into things, and this creates force. The amount of force pushing against a given area is called pressure.
ARC-Easy
arc_04_01090
There is a thunderstorm close to your house. The windows rattle at the same time that you hear the thunder. What causes the windows to rattle?
[ "Sound waves from the thunder", "Light from the lightning", "Rain from the clouds", "The high humidity during the storm" ]
A
null
medmcqa
medmcqa_05_02511
An infant is brought to casualty with repos of violent shaking by parents. Most characteristic injury is: AI 11
[ "Long bone fracture", "Ruptured spleen", "Subdural hematoma", "Skull bone fracture" ]
C
Ans. Subdural hematoma
sciq
sciq_01_11479
A long chain of monosaccharides linked by glycosidic bonds is known as what?
[ "sulfate", "Fructose", "polysaccharide", "polymers" ]
C
Polysaccharides A long chain of monosaccharides linked by glycosidic bonds is known as a polysaccharide (poly- = “many”). The chain may be branched or unbranched, and it may contain different types of monosaccharides. The molecular weight may be 100,000 daltons or more depending on the number of monomers joined. Starch...
medmcqa
medmcqa_05_01851
A 26-year-old female presents with 8 week amenorrhoea with pain in left lower abdomen. On USG thick endometrium with mass in lateral adnexa is visible. Diagnosis is likely to be:
[ "Ectopic pregnancy", "Torsion of dermoid cyst", "Tubo ovarian mass", "Hydrosalpinx" ]
A
The diagnosis of ectopic pregnancy should be considered strongly when any of the foregoing symptoms (amenorrhea followed by vaginal bleeding and abdominal pain on the affected side) are repoed by a reproductive-aged women. Transvaginal sonography and serial serum beta-hCG measurements are the most valuable diagnostic a...
ARC-Easy
arc_04_00482
Why is water considered to be a renewable resource?
[ "Water can be used over again.", "Water can be found all over Earth.", "Water can dissolve other substances.", "Water is needed by organisms to stay alive." ]
A
null
openbookqa
obqa_02_03340
Pollution is caused by using what?
[ "chevy rides", "car pictures", "sunlight", "plants" ]
A
using a car causes pollution
math_qa
mathqa_03_02347
in a certain pond , 60 fish were caught , tagged , and returned to the pond . a few days later , 60 fish were caught again , of which 2 were found to have been tagged . if the percent of tagged fish in the second catch approximates the percent of tagged fish in the pond , what ` s the approximate number of fish in the ...
[ "400", "625", "1818", "2500" ]
C
"the percent of tagged fish in the second catch is 2 / 60 * 100 = 3.33 % . we are told that 3.33 % approximates the percent of tagged fish in the pond . since there are 60 tagged fish , then we have 0.033 x = 60 - - > x = 1,818 . answer : c ."
medmcqa
medmcqa_05_03212
OCT (Optical coherence tomography) is based on?
[ "High coherence interferometry", "Low coherence interferometry", "Non-coherence interferometry", "Polariztion" ]
B
Optical Coherence Tomography(OCT) is a new imaging modality that produces high resolution, cross-sectional images of ocular structures in vivo. OCT produces detailed two-dimensional images of the retina and measures retinal thickness with a longitudinal image resolution of approximately 10 microns. The principles of OC...
sciq
sciq_01_01082
What characteristics of an organism help it survive?
[ "Changes", "adaptations", "systems", "additions" ]
B
Some of the characteristics an organism has may help it survive. These characteristics are called adaptations . Some adaptations are better than others.
math_qa
mathqa_03_00854
a person want to give his money of $ 5400 to his 3 children a , b , c in the ratio 2 : 3 : 4 . what is the b ' s share ?
[ "$ 2000", "$ 1800", "$ 2500", "$ 1500" ]
B
"b ' s share = 5400 * 3 / 9 = $ 1800 answer is b"
openbookqa
obqa_02_00282
Recycling old cars has a positive impact on
[ "the weather", "conservation of metal", "human life span.", "the economy" ]
B
recycling nonrenewable resources has a positive impact on the conservation of those resources
sciq
sciq_01_01785
Amniocentesis and chorionic villus sampling can indicate whether a suspected genetic disorder is present at what stage?
[ "toddler", "adult", "infant", "fetal" ]
D
sciq
sciq_01_04757
The motor thus acts as a generator whenever its coil does what?
[ "rotates", "oscillates", "stops", "revolves" ]
A
23.6 Back Emf It has been noted that motors and generators are very similar. Generators convert mechanical energy into electrical energy, whereas motors convert electrical energy into mechanical energy. Furthermore, motors and generators have the same construction. When the coil of a motor is turned, magnetic flux chan...
sciq
sciq_01_00884
Which elements fall between metals and nonmetals in the periodic table?
[ "halogens", "metalloids", "synthetics", "noble gases" ]
B
Metalloids are elements that fall between metals and nonmetals in the periodic table. Just seven elements are metalloids, so they are the smallest class of elements. In Figure above , they are color-coded orange. Examples of metalloids include boron (B), silicon (Si), and germanium (Ge).
openbookqa
obqa_02_02184
Using your electronic that uses batteries for long periods of time makes them get very hot to the touch, which makes it a
[ "source of ice", "source of candy", "Source of wind", "source of warmth" ]
D
a hot substance is a source of heat
sciq
sciq_01_02592
What is the term for anything that has mass and volume?
[ "liquid", "matter", "gass", "energy" ]
B
Matter is anything that has mass and volume. Mass is the amount of matter in a substance. Volume is the amount of space matter takes up.
openbookqa
obqa_02_00037
if the boiling point of water is attained, what ensues beyond this point?
[ "the water turns evaporates rapidly", "the water then solidifies", "the water becomes black", "all of these" ]
A
steam is a kind of water above 100 degrees celsius
openbookqa
obqa_02_01287
A team has pizza after a game, and they eat most of it, but leave the rest of the pizza out. The pizza is later inedible because of
[ "need to play games", "bedtime coming sooner than thought", "lack of food preservation", "exhaustion from the sun" ]
C
microorganisms cause food to spoil
ARC-Easy
arc_04_00328
Otto pushed a toy car across a floor. The car traveled fast across the wood, but it slowed to a stop on the carpet. Which best explains what happened when the car reached the carpet?
[ "Inertia decreased.", "Gravity increased.", "Friction increased.", "Magnetism decreased." ]
C
null
medmcqa
medmcqa_05_01142
Palivizumab, a monoclonal antibody is used for the prophylaxis of:
[ "Human metapneumovirus", "Para-influenza virus type 2 and 4", "Influenza virus", "Respiratory syncytial virus" ]
D
Ans. (D) Respiratory syncytial virus(Katzung 13th/863)Palivizumab is a monoclonal antibody produced by recombinant DNA technology. It is used in the prevention of respiratory syncytial virus (RSV) infections.
openbookqa
obqa_02_01615
When you increase the viability of food, you increase the ability to
[ "waste it", "modify it", "disperse it", "displace it" ]
C
as ability to preserve food increases , the ability to transport food increases
ARC-Easy
arc_04_00334
Which statement is describing climate?
[ "It snowed 12 centimeters last night.", "Last winter was colder than normal.", "There is a thunderstorm watch for the local area.", "The temperature will be between 32°C and 37°C all week." ]
B
null
sciq
sciq_01_07409
Why does the body react to a loss of chloride ions?
[ "decreased tricarbonate reabsorption", "increased bicarbonate reabsorption", "increased tricarbonate reabsorption", "decreased bicarbonate reabsorption" ]
B
Chloride ions are important in neutralizing positive ion charges in the body. If chloride is lost, the body uses bicarbonate ions in place of the lost chloride ions. Thus, lost chloride results in an increased reabsorption of bicarbonate by the renal system.
sciq
sciq_01_08149
What kind of cleavage do mammalian eggs exhibit?
[ "spicule", "Meroblastic", "cocklebur", "holoblastic" ]
D
openbookqa
obqa_02_04879
Earthquakes can shake
[ "fish", "flying birds", "clouds", "smoke" ]
A
an earthquake causes the ground to shake
openbookqa
obqa_02_00074
Where is the best place to shoot animals?
[ "national park", "sky", "forest", "sea" ]
C
national parks limit hunting
ARC-Challenge
arc_04_02561
A bowling ball with a mass of 8.0 kg rolls down a bowling lane at 2.0 m/s. What is the momentum of the bowling ball?
[ "4.0 kg x m/s", "6.0 kg x m/s", "10.0 kg x m/s", "16.0 kg x m/s" ]
D
null
sciq
sciq_01_07451
What are considered to be the smallest particles of matter?
[ "ions", "molecules", "cells", "atoms" ]
D
All substances are made of atoms. Atoms are the smallest particles of matter. They cannot be divided into smaller particles, created, or destroyed.
openbookqa
obqa_02_00134
Which set of animals don't compete for food?
[ "dolphin and fish", "hyena and bear", "whale and cat", "eagle and raven" ]
C
if two animals have the same food source then those two animals compete for food
sciq
sciq_01_03085
What is something that all machines must overcome?
[ "work", "friction", "stress", "temperature" ]
B
The mechanical advantage of a simple machine such as a pulley is the factor by which the machine changes the force applied to it. The ideal mechanical advantage of a machine is its mechanical advantage in the absence of friction. All machines must overcome friction, so the ideal mechanical advantage is always somewhat ...
sciq
sciq_01_11099
What is the term for dry climate regions at higher altitudes that have short grasses and low bushes?
[ "prairie", "steppes", "fringes", "deserts" ]
B
Other dry climates get a little more precipitation. They are called steppes . These regions have short grasses and low bushes (see Figure below ). Steppes occur at higher latitudes than deserts. They are dry because they are in continental interiors or rain shadows.
openbookqa
obqa_02_03071
Which would one most likely run into when crossing a stream?
[ "a fire", "a piranha", "a painful death", "a scorpion" ]
B
aquatic animals live in bodies of water
sciq
sciq_01_07566
Dinosaurs filled the niches that mammals fill today during which era?
[ "Phanerozoic", "mesozoic", "Proterozoic", "Cenozoic" ]
B
In the Mesozoic, dinosaurs filled the niches that mammals fill today.
openbookqa
obqa_02_04408
The elements changed America's tallest peaks into
[ "marble blocks", "ivory castles", "towers of gold", "loose rocks" ]
D
break down means change from a whole into pieces
sciq
sciq_01_04789
Chewing a bite of bread mixes it with what and facilitates its chemical breakdown?
[ "saliva", "calcium", "interstitial fluid", "chyme" ]
A
Exergonic c. Decomposition d. Catabolic, exergonic, and decomposition 18. Which of the following combinations of atoms is most likely to result in a chemical reaction? a. hydrogen and hydrogen b. hydrogen and helium c. helium and helium d. neon and helium 19. Chewing a bite of bread mixes it with saliva and facilitates...
sciq
sciq_01_08963
What is the term for liquid water falling from the sky?
[ "fire", "rain", "mud", "wind" ]
B
ARC-Challenge
arc_04_02273
Which of the water samples described below has the greatest average kinetic energy per molecule?
[ "1 liter of ice at a temperature of -50°C", "10 liters of ice at a temperature of -75°C", "1 liter of water at a temperature of 75°C", "10 liters of water at a temperature of 50°C" ]
C
null
math_qa
mathqa_03_01387
a can complete a project in 20 days and b can complete the same project in 30 days . if a and b start working on the project together and b quits 5 days before the project is completed , in how many days total will the project be completed ?
[ "10", "12", "14", "16" ]
C
"a ' s rate is 1 / 20 of the project per day . b ' s rate is 1 / 30 of the project per day . the combined rate is 1 / 12 of the project per day . in the last 5 days , a can do 1 / 4 of the project . thus a and b must complete 3 / 4 of the project , which takes 9 days . the total number of days is 9 + 5 = 14 . the answe...
sciq
sciq_01_08533
What are the pores in plants that keep certain gases and liquids in and out called?
[ "chloroplasts", "lesions", "stomata", "stigmata" ]
C
Additional Land Plant Adaptations As plants adapted to dry land and became independent of the constant presence of water in damp habitats, new organs and structures made their appearance. Early land plants did not grow above a few inches off the ground, and on these low mats, they competed for light. By evolving a shoo...
openbookqa
obqa_02_04082
Pollution is
[ "trees in a green forest", "when wind carries seeds", "throwing a candy wrapper down", "Fish swimming in the sea" ]
C
pollution is a source of pollutants
medmcqa
medmcqa_05_04893
Intrauterine insemination means implantation of:
[ "Semen", "Washed semen", "Million of sperm", "Fertilized ova" ]
B
Intrauterine insemination is placement of 0.3mL of washed processed and concentrated sperms (devoid of seminal plasma)/semen into the intrauterine cavity by transcervical catheterization.
sciq
sciq_01_06919
What is just below the cerebrum and coordinates body movements?
[ "hypothalamus", "spinal cord", "cerebellum", "bloodstream" ]
C
The cerebellum is just below the cerebrum. It coordinates body movements. Many nerve pathways link the cerebellum with motor neurons throughout the body.
sciq
sciq_01_09733
How does uric acid react to water?
[ "mixes", "does not dissolve", "explodes", "does not form" ]
B
ARC-Challenge
arc_04_02593
What is a worldwide increase in temperature called?
[ "greenhouse effect", "global warming", "ozone depletion", "solar heating" ]
B
null
medmcqa
medmcqa_05_03776
Which of the following lesions is not a common cause for vegetation formation in the hea ?
[ "AS", "MS", "MR", "ASD" ]
D
There is low flow and turbulence in ASD, so risk of vegetation formation and infective endocarditis is low.
sciq
sciq_01_10318
What are the nonliving matter that living things need called?
[ "fluids", "acids", "nutrients", "elements" ]
C
Living things need nonliving matter as well as energy. What do you think matter is used for? One thing is to build bodies. They also need it to carry out the processes of life. Any nonliving matter that living things need is called a nutrient . Carbon and nitrogen are examples of nutrients. Unlike energy, matter is rec...
math_qa
mathqa_03_02397
a room is 7 meters 20 centimeters in length and 4 meters 32 centimeters in width . find the least number of square tiles of equal size required to cover the entire floor of the room .
[ "10", "15", "17", "19" ]
B
"let us calculate both the length and width of the room in centimeters . length = 7 meters and 20 centimeters = 720 cm width = 4 meters and 32 centimeters = 432 cm as we want the least number of square tiles required , it means the length of each square tile should be as large as possible . further , the length of each...
sciq
sciq_01_02239
When both objects have a positive charge what will the force be between them?
[ "attractive", "repulsive", "expressive", "polar" ]
B
The positive sign of the force indicates the force is repulsive. This makes sense, because both objects have a positive charge.
medmcqa
medmcqa_05_01768
Keyhole bullet entry is a feature of -
[ "Tandem bullet", "Ricochet bullet", "Single bullet", "Double bullet" ]
B
the synopsis of forensic medicine & toxicology ; Dr k.s narayan reddy ;28th edition ; pg.no 134 A ricochet bullet is one in which before striking the object aimed at ,strikes some intervening object first then after rebounding from these hits the object. Sometimes a bullet may strike an object & tumble & hit the body s...
math_qa
mathqa_03_04450
find the average of all numbers between 4 and 34 which are divisible by 5
[ "20", "21", "25", "30" ]
B
"explanation : average = ( 5 + 10 + 15 + 20 + 25 + 30 ) / 5 = 105 / 5 = 21 option b"