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medmcqa
medmcqa_05_04811
Bestiality is -
[ "Having intercourse with an animal", "Cruelty to animals", "Cruelty to fellow human", "Beast like behaviour of an insane" ]
A
Bestiality is sexual intercourse by a human being with an animal.
medmcqa
medmcqa_05_01681
Bosniak classification is for?
[ "Renal tuberculosis", "Renal cysts", "RCC", "VUR" ]
B
The Bosniak classification system of renal cystic masses divides renal cystic masses into five categories based on imaging characteristics on contrast-enhanced CT. It is helpful in predicting a risk of malignancy and suggesting either follow up or treatment. Classification: Bosniak I -Simple cyst , imperceptible wall; ...
medmcqa
medmcqa_05_04937
Common age for otosclerosis is
[ "5-10 years", "10-20 years", "20-30 years", "30-45 years" ]
C
Hearing loss usually stas between 20 to 30 years of age and is rare before 10 and after 40 years. (Ref: Textbook of diseases of ENT, PL Dhingra, 7th edition, pg no. 95)
math_qa
mathqa_03_00772
two good train each 250 m long , are running in opposite directions on parallel tracks . their speeds are 45 km / hr and 30 km / hr respectively . find the time taken by the slower train to pass the driver of the faster one .
[ "12 sec", "24 sec", "48 sec", "60 sec" ]
B
"sol . relative speed = ( 45 + 30 ) km / hr = ( 75 x 5 / 18 ) m / sec = ( 125 / 6 ) m / sec . distance covered = ( 250 + 250 ) m = 1000 m . required time = ( 500 x 6 / 125 ) sec = 24 sec . answer b"
openbookqa
obqa_02_00098
The way that squirrels put away food during the cool season ensures that they
[ "survive", "eat", "live", "grow" ]
A
squirrels gather nuts in the autumn to eat during the winter
sciq
sciq_01_00219
What is formed when an oxygen atom picks up a pair of hydrogen ions from a solution?
[ "turpentine", "water", "liquid", "ammonia" ]
B
math_qa
mathqa_03_00613
after decreasing 24 % in the price of an article costs rs . 988 . find the actual cost of an article ?
[ "1667", "6789", "1300", "6151" ]
C
"cp * ( 76 / 100 ) = 988 cp = 13 * 100 = > cp = 1300 answer : c"
math_qa
mathqa_03_03430
a car covers a distance of 624 km in 6 â ½ hours . find its speed ?
[ "104", "190", "109", "278" ]
C
explanation : 624 / 6 = 104 kmph answer : c
openbookqa
obqa_02_02913
What one animal commonly associated with America and is the animal on a one dollar bill would eat the long eared animal on a cartoon commonly eating a carrot and saying What's up doc??
[ "Jackal", "Wolf", "Eagle", "Bear" ]
C
eagles eat rabbits
sciq
sciq_01_03478
What occurs between long warm climate periods?
[ "hurricanes", "drought", "ice ages", "mass extinction" ]
C
Earth’s climate has changed many times. Long warm periods were broken up by ice ages. Over the past 150 years, climate has warmed quickly.
ARC-Easy
arc_04_01829
Which of the following would most likely happen if grasses and shrubs were removed from a rural Massachusetts ecosystem?
[ "There would be an increase in consumers in the ecosystem.", "There would be an increase of photosynthesis in the ecosystem.", "There would be a decrease in food energy produced by the ecosystem.", "There would be a decrease of carbon dioxide available to the ecosystem." ]
C
null
sciq
sciq_01_04937
What is the second highest mountain in the world, at over 28,000 feet?
[ "pikes peak", "everest", "k2", "makalu" ]
C
The Karakoram Range is part of the Himalaya Mountains. K2, pictured here, is the second highest mountain the world at over 28,000 feet. The number and height of mountains is impressive.
sciq
sciq_01_02551
Which part of the body has mucus and hair to trap dust and also warms and moistens air so to not harm lung tissue?
[ "the ear", "the throat", "the tongue", "the nose" ]
D
In the nose, mucus and hairs trap any dust or other particles in the air. The air is also warmed and moistened so it won’t harm delicate tissues of the lungs.
ARC-Challenge
arc_04_02480
Young robins build the same kinds of nests their parents build even if the young birds have never seen their parents build a nest. This is an example of
[ "a learned behavior.", "an inherited behavior.", "a physical characteristic.", "acquired characteristic." ]
B
null
sciq
sciq_01_03131
What physical property of matter reflects how closely packed the particles are?
[ "strength", "diameter", "volume", "density" ]
D
Density is an important physical property of matter. It reflects how closely packed the particles of matter are. Density is calculated from the amount of mass in a given volume of matter, using the formula:.
sciq
sciq_01_00348
Water is recycled constantly through which system?
[ "the ecosystem", "the troposphere", "the hydropshere", "the habitat" ]
A
Water is recycled constantly through the ecosystem. That means any water you drank today has been around for millions of years. You could be drinking water that was once drunk by George Washington, the first humans, or even the dinosaurs.
sciq
sciq_01_06496
What effect causes global winds to blow on a diagonal over the earth's surface?
[ "centrifugal effect", "coriolis effect", "resonant effect", "dopler effect" ]
B
Global winds occur in belts around the globe. They are caused by unequal heating of Earth’s surface. The Coriolis effect causes global winds to blow on a diagonal over the surface. Unequal heating also causes jet streams high in the troposphere.
sciq
sciq_01_04703
At the time of birth, bones of the brain case are separated by what wide areas of fibrous connective tissue, which later become sutures?
[ "cerebellum", "sporozoans", "fluctuations", "fontanelles" ]
D
7.5 Embryonic Development of the Axial Skeleton Formation of the axial skeleton begins during early embryonic development with the appearance of the rod-like notochord along the dorsal length of the early embryo. Repeating, paired blocks of tissue called somites then appear along either side of notochord. As the somite...
math_qa
mathqa_03_02610
a , b and c are partners . a receives 2 / 3 of profits , b and c dividing the remainder equally . a ' s income is increased by rs . 800 when the rate to profit rises from 5 to 7 percent . find the capital of b ?
[ "3999", "10000", "2500", "2772" ]
B
"a : b : c = 2 / 3 : 1 / 6 : 1 / 6 = 4 : 1 : 1 x * 2 / 100 * 2 / 3 = 800 b capital = 60000 * 1 / 6 = 10000 . answer : b"
openbookqa
obqa_02_04674
More dirt and sand gets deposited in a flat area near a river whenever
[ "the river is hit with an extremely large amount of precipitation in a day", "a deer is hunted on the river bank", "birds fly over the area", "a helicopter flies too low over the land" ]
A
when a river floods , that river deposits sediment in flood plains
openbookqa
obqa_02_03685
Which can go in the recycled bin
[ "duct tape", "hair gel", "Sprite container", "cell phones" ]
C
recyclable means a material can be recycled
sciq
sciq_01_07395
The pulmonary circulation carries blood between what two organs?
[ "kidney and heart", "heart and lungs", "heart and pancreas", "lungs and kidney" ]
B
The pulmonary circulation carries blood between the heart and lungs. The systemic circulation carries blood between the heart and body.
openbookqa
obqa_02_02738
Having food has a positive impact on the health of what?
[ "organism charts", "water", "sunlight", "critters" ]
D
having food has a positive impact on an organism 's health
sciq
sciq_01_06552
What contains most of the structures found in skin?
[ "subcutaneous layer", "basal layer", "dermis", "epidermis" ]
C
Structures of the Dermis. The dermis contains most of the structures found in skin.
ARC-Challenge
arc_04_02687
Which of these is true when a piece of wood is completely burned in a fire?
[ "The change in the wood is reversible.", "The energy in the wood is destroyed.", "The change in the wood is physical.", "The energy in the wood is transformed." ]
D
null
medmcqa
medmcqa_05_02701
Ammonia is detoxified in brain to-
[ "Uric acid", "GABA", "Urea", "Glutamine" ]
D
The brain is a rich source of glutamine synthase and predominantly detoxifies ammonia by synthesis of glutamate.
math_qa
mathqa_03_02804
a 6 by 8 rectangle is inscribed in circle . what is the circumference of the circle ?
[ "5 π", "10 π", "15 π", "20 π" ]
B
"the diagonal of the rectangle will be the diameter of the circle . and perimeter = 2 * pi * r ans : b"
sciq
sciq_01_06357
What senses the movement of liquid in ear canals?
[ "hair cells", "muscle cells", "Brain Cells", "Ear Drum" ]
A
This bottle of water models the semicircular canals in your ears. When you tip the bottle, the water moves up or down the sides of the bottle; when you tip your head, the liquid inside the semicircular canals moves up and down the sides of the canals. Tiny hair cells lining the canals sense the movement of liquid and s...
sciq
sciq_01_07558
What causes maple leaves to change their colors?
[ "chemical reactions", "radiation reactions", "factor reactions", "artificial preservatives" ]
A
These vividly colored maple leaves were all bright green during the summer. Every fall, leaves of maple trees change to brilliant red, orange, and yellow colors. A change of color is a sign that a chemical change has taken place. Maple leaves change color because of chemical reactions.
sciq
sciq_01_02659
Sharing a phylum with insects, spiders, daddy-long-legs, scorpions, and ticks belong to what class?
[ "annelids", "mammals", "arachnids", "reptiles" ]
C
Arachnids include spiders, daddy-long-legs, scorpions, and ticks.
medmcqa
medmcqa_05_03669
Chronic Carrier State is seen in -
[ "Measles", "Influenza", "HepatitisB", "Pertussis" ]
C
Ans. is 'c' i.e., hepatitis B Incubatory carrierConvalescent carrierHealthy carrierChronic carriero Measleso Mumpso Polioo Pertusiso Influenzao Diphtheriao Hepatitis Bo Typhoid fevero Dysentery (bacillary and amebic)o Cholerao Diphtheriao Whooping cougho Poliomyelitiso Cholerao Meningoccal meningitiso Salmonellao Dipht...
math_qa
mathqa_03_01483
if 10 spiders make 5 webs in 5 days , then how many days are needed for 1 spider to make 1 web ?
[ "10", "9", "5", "15" ]
A
"explanation : let , 1 spider make 1 web in x days . more spiders , less days ( indirect proportion ) more webs , more days ( direct proportion ) hence we can write as ( spiders ) 10 : 1 ( webs ) 1 : 5 } : : x : 5 â ‡ ’ 10 ã — 1 ã — 5 = 1 ã — 5 ã — x â ‡ ’ x = 10 answer : option a"
ARC-Easy
arc_04_01955
To compare the hardness of different minerals, it would be BEST to find
[ "the color of the minerals.", "which minerals scratch other minerals.", "which minerals reflect light most strongly.", "the samples that feel smoothest to the touch." ]
B
null
medmcqa
medmcqa_05_04578
A 40 years old male patient presented to surgery OPD with history of serous discharge from an external opening located in perianal region(posterior openings). On examination, the location of external opening was at 4'O clock position. What is the location of internal opening?
[ "a. 3'O clock", "4'O clock", "5'O clock", "6'O clock" ]
D
Goodsall's Rule: Anterior openings - Straight tracks - Location of external & internal openings are in the same position. Eg: Location of external opening is 1'0 clock position the location of internal opening is also at 1'0 clock position Posterior openings - Curved tracks - Location of external & internal opening - N...
sciq
sciq_01_06609
Which metal is not a solid even at room temperature?
[ "iron", "aluminum", "copper", "mercury" ]
D
A metal is an element that is a good conductor of heat and electricity. Metals are also malleable, which means that they can be hammered into very thin sheets without breaking, and ductile, which means that they can be drawn into wires. When a fresh surface of any metal is exposed, it will be very shiny, because it ref...
ARC-Easy
arc_04_01422
Which of the following best describes an atom?
[ "protons and electrons grouped together in a random pattern", "protons and electrons grouped together in an alternating pattern", "a core of protons and neutrons surrounded by electrons", "a core of electrons and neutrons surrounded by protons" ]
C
null
medmcqa
medmcqa_05_04609
Stereoanesthesia is due to lesion of
[ "Nucleus Gracilis", "Nucleus cuneatus", "Cerebral cortex", "Spinothalamic tract" ]
C
(C) Cerebral cortex # Stereognosis:> The ability to identify objects by handling them with out looking at them is called stereognosis.> Ability obviously depends upon relatively intact touch & pressure sensation & is compromised when the dorsal columns are dam- aged.> It also has a large cortical component; impaired co...
sciq
sciq_01_08156
What will happen to a rock when it's under tremendous stress?
[ "it will solidify", "it will rebound", "it will fracture", "it will slow" ]
C
A rock under enough stress will fracture. There may or may not be movement along the fracture. If there is not movement, the fracture is a joint. If there is movement, the fracture is a fault.
sciq
sciq_01_01446
What disease is described as a respiratory disorder characterized by wheezing, coughing, and a feeling of constriction in the chest?
[ "indigestion", "asthma", "inflammation", "dementia" ]
B
Respiratory system disorders are directly related to air pollution. These disorders have severe effects on human health, some leading to death directly related to air pollution. Air pollution related respiratory disorders include asthma, bronchitis, and emphysema. Asthma is a respiratory disorder characterized by wheez...
medmcqa
medmcqa_05_04062
Which of the following is the order of activation after stimulation of Purkinji fibrs is :
[ "Septum -> Endocardium -> Epicardium", "Endocrdium -> Septum -> Epicardium", "Epicardium -> Septum -> Endocardium", "Septum -> Epicardium -> Endocardium" ]
A
Ans. is 'a' is Septum - Endocardium - Epicardium Order of spread of cardiac excitationSA node - AV node - Bundle of HIS* - Purkinje system* - Ventricular muscle.SA node - AV node - Bundle of HIS* - Purkinje system* - Ventricular muscle.Order of activation of ventricular muscle.Depolarization starts of the left side of ...
sciq
sciq_01_04259
Viroids are plant pathogens much simpler than what, but like them can reproduce only within a host cell?
[ "bacteria", "viruses", "pests", "parasites" ]
B
Viroids Viroids are plant pathogens: small, single-stranded, circular RNA particles that are much simpler than a virus. They do not have a capsid or outer envelope, but like viruses can reproduce only within a host cell. Viroids do not, however, manufacture any proteins, and they only produce a single, specific RNA mol...
sciq
sciq_01_09280
Most of these bacterial illnesses can be prevented with proper cooking of food and washing what?
[ "hair", "teeth", "vegetables", "hands" ]
D
Bacteria that cause foodborne illnesses include Salmonella , a bacterium found in many foods, including raw and undercooked meat, poultry, dairy products, and seafood. Campylobacter jejuni is found in raw or undercooked chicken and unpasteurized milk. Several strains of E. coli can cause illnesses, and are found in raw...
ARC-Easy
arc_04_01726
Which type of energy conversion occurs in a flashlight?
[ "chemical to light", "mechanical to light", "electrical to chemical", "mechanical to chemical" ]
A
null
sciq
sciq_01_04547
What delivers power to the chemical factory chloroplasts?
[ "chlorophyll", "the sun", "oxygen", "water" ]
B
openbookqa
obqa_02_01395
when fuel efficiency increases, gasoline use in cars will
[ "stay the same", "cause more windstorms", "increase", "decrease" ]
D
as mileage per galon of gasoline increases , the amount of gasoline used will decrease
math_qa
mathqa_03_00983
a circular mat with radius 10 inches is placed on a square tabletop , each of whose sides is 24 inches long . which of the following is closest to the fraction of the tabletop covered by the mat ?
[ "5 / 12'", "2 / 5'", "0.5451'", "3 / 4'" ]
C
c . it is a circle inscribed in a square . square side = 24 - - - > square ( table ) area = 24 ^ 2 circle diameter = 20 - - - > circle area = pir ^ 2 = 100 pi ( where pi = ~ 3.14 ) covered fraction = 100 * 3.14 / 24 * 24 = ~ 314 / 24 * 24 = 0.5451 c
math_qa
mathqa_03_03782
for any integer p , * p is equal to the product of all the integers between 1 and p , inclusive . how many prime numbers are there between * 5 + 3 and * 5 + 5 , inclusive ?
[ "none", "one", "two", "three" ]
A
generally * p or p ! will be divisible by all numbers from 1 to p . therefore , * 5 would be divisible by all numbers from 1 to 5 . = > * 5 + 3 would give me a number which is a multiple of 3 and therefore divisible ( since * 5 is divisible by 3 ) in fact adding anyprimenumber between 1 to 5 to * 5 will definitely be d...
ARC-Easy
arc_04_01368
Which landforms are most like hills but are much taller?
[ "caves", "mountains", "plains", "valleys" ]
B
null
sciq
sciq_01_00311
The process of breaking down food into nutrients is known as __________
[ "filtration", "digestion", "energy", "absorption" ]
B
As food is pushed through the GI tract by peristalsis, it undergoes digestion. Digestion is the process of breaking down food into nutrients. There are two types of digestion: mechanical digestion and chemical digestion.
sciq
sciq_01_01103
Co 2 , h 2 o, methane, o 3 , nitrous oxides (no and no 2 ), and chlorofluorocarbons (cfcs) are known as what type of gases?
[ "chemical gases", "carbonate gases", "hydrogen gases", "greenhouse gases" ]
D
Greenhouse gases include CO 2 , H 2 O, methane, O 3 , nitrous oxides (NO and NO 2 ), and chlorofluorocarbons (CFCs). All are a normal part of the atmosphere except CFCs. The table below shows how each greenhouse gas naturally enters the atmosphere ( Table below ).
sciq
sciq_01_09329
What are the three types of symbiosis?
[ "mutualism, parasitism, commensalism", "connectionism , parasitism , commensalism", "internalization , parasitism , commensalism", "commensalism, osmosis, internalization" ]
A
Symbiosis is a close relationship between two species in which at least one species benefits. For the other species, the relationship may be beneficial, harmful, or neutral. There are three types of symbiosis: mutualism, parasitism, and commensalism.
openbookqa
obqa_02_04693
Gravity is an example of which?
[ "Magnetic Force", "Speed", "Contact Force", "Non-Contact Force" ]
D
non-contact forces can affect objects that are not touching
medmcqa
medmcqa_05_00827
Antrum of Highmore is another name for:
[ "Maxillary", "Ethmoid", "Sphenoid", "Frontal" ]
A
Maxillary sinus is also called as antrum of highmore and is the first to develop in human fetus.It is the largest paranasal sinus (15 ml capacity in adults).
sciq
sciq_01_07176
What is the term for geological activity that occurs within a plate?
[ "deformation activity", "intraplate activity", "disruption activity", "perennials activity" ]
B
Not all geological activity is found at plate boundaries. Activity within a plate is called intraplate activity. Most intraplate activity occurs at hotspots.
sciq
sciq_01_01155
Who created the periodic table?
[ "Isaac Newton", "dmitri mendeleev", "Gregor Mendel", "Niels Bohr" ]
B
In 1869, a Russian scientist named Dmitri Mendeleev created the periodic table , which is a way of organizing elements according to their unique characteristics, like atomic number, density, boiling point, and other values ( Figure below ). Each element is represented by a one or two letter symbol. For example, H stand...
sciq
sciq_01_07999
Desert plants have evolved processes to conserve water and deal with harsh conditions. a more efficient use of co2 allows plants to adapt to living with what?
[ "more sunlight", "more water", "less competition", "less water" ]
D
perpendicular to the surface at the point where the ray strikes the surface.
ARC-Easy
arc_04_00296
A forest was cleared for the building of a resort, but before construction began, secondary succession set in. Which of these describes why secondary succession appeared so rapidly?
[ "The clearing allowed mosses to grow quickly.", "Rock weathering occurred for lichens to grow.", "Exposed substrates allowed microbes to grow.", "The soil components remained for plants to grow." ]
D
null
openbookqa
obqa_02_02424
What could be used to examine the legs of a lady bug?
[ "a pedometer", "a stethoscope", "a loupe", "a telescope" ]
C
magnifying glass is used to see small things by making objects appear bigger
sciq
sciq_01_10585
All three types of convergent plate boundaries produce what destructive phenomenon?
[ "volcano", "storm", "earthquake", "tornado" ]
C
All three types of convergent plate boundaries produce massive earthquakes.
sciq
sciq_01_10146
What two states of matter are included in the category "fluids"?
[ "solids and gases", "liquids and soilds", "liquids and gases", "bacteria and gases" ]
C
Fluid friction is friction that acts on objects that are moving through a fluid. A fluid is a substance that can flow and take the shape of its container. Fluids include liquids and gases. If you’ve ever tried to push your open hand through the water in a tub or pool, then you’ve experienced fluid friction between your...
sciq
sciq_01_01436
Glucose, galactose, and fructose are all what?
[ "alucoxes", "structoxes", "fluxes", "hexoses" ]
D
Figure 3.5 Glucose, galactose, and fructose are all hexoses. They are structural isomers, meaning they have the same chemical formula (C6H12O6) but a different arrangement of atoms.
ARC-Easy
arc_04_01548
Why are some rocks smoother and rounder than others?
[ "They have the shapes of the minerals from which they are made.", "They were smoothed by the action of wind and water.", "They were squeezed up through the soil.", "They hardened in rounded pockets of soil." ]
B
null
sciq
sciq_01_05588
The process when heat is released is referred to as what?
[ "exothermic", "endothermic", "insular", "geothermal" ]
A
Heat involves the transfer of thermal energy between two bodies that are at different temperatures. If you held a flask containing a reaction that releases energy, you would be able to feel the heat being transferred from the reaction into your hand. A process in which heat is released is referred to as exothermic . Co...
math_qa
mathqa_03_02891
one side of a rectangular field is 16 m and one of its diagonal is 17 m . find the area of the field .
[ "100", "120", "91.2", "180" ]
C
"solution other side = √ ( 17 ) 2 - ( 16 ) 2 = √ 289 - 256 = √ 33 = 5.7 m . ∴ area = ( 16 x 5.7 ) m 2 = 91.2 m 2 . answer c"
medmcqa
medmcqa_05_02740
Which of the following represents the concentration of adrenaline which is used with lidocaine ?
[ "0.180555556", "1.430555556", "1:20000", "1:200000" ]
D
Lidocaine stabilizes the neuronal membrane by inhibiting the ionic fluxes required for the initiation and conduction of nerve impulses, thereby effecting local anesthetic action. Epinephrine, in concentrations of 5 mcg/ml, is commonly used to decrease the absorption of local anesthetics. A 5 mcg/ml (1:200,000) dose of ...
sciq
sciq_01_08034
What kind of respiration allows rapid production of atp in low oxygen situations?
[ "anaerobic", "aerobic", "enzymatic", "anabolic" ]
A
Muscle color reflects its specialization for aerobic or anaerobic metabolism. Although humans are obligate aerobes , our muscle cells have not given up on ancient pathways which allow them to keep producing ATP quickly when oxygen runs low. The difference is more pronounced in chickens and grouse ( Figure below ), whic...
sciq
sciq_01_00731
What is another term for hydraulic fracturing?
[ "fracking", "drilling", "permeating", "erupting" ]
A
Hydraulic fracturing, known as fracking, is a relatively new method for extracting natural gas. Fracking may be linked to groundwater contamination and small earthquakes in non-seismic regions.
openbookqa
obqa_02_00322
A car engine is a source of heat and therefore needs
[ "radiator fluid", "water added", "wiper fluid", "gasoline" ]
A
a car engine is a source of heat
sciq
sciq_01_08279
What are all living things made of?
[ "proteins", "water", "muscles", "cells" ]
D
Cells are the tiny building blocks of living things. They couldn’t be discovered until the microscope was invented. The discovery of cells led to the cell theory. This is one of the most important theories in life science.
sciq
sciq_01_10562
The medieval catapult has a heavy ballast on one end and what on the other end?
[ "projectile", "propellant", "fragment", "pivot" ]
A
openbookqa
obqa_02_02447
The more that worms make their way through compost, the more
[ "bees in skies", "vitamins in dirt", "trees in fields", "snakes on planes" ]
B
decomposition increases the amount of nutrients in the soil
medmcqa
medmcqa_05_03836
Which pa of brain has olivary nucleus?
[ "Pons", "Midbrain", "Spinal cord", "Medulla" ]
D
Ans. is'd'i.e., MedullaOlivary nucleus is seen in medulla oblongata.
openbookqa
obqa_02_02534
Jack rabbits move very fast to avoid
[ "squirrel", "mice", "snails", "hawks" ]
D
some animals move quickly to escape predators
medmcqa
medmcqa_05_00109
'Macewan sign' is seen in:
[ "Alcoholic intoxication", "Organophosphorus poisoning", "Barbiturate poisoning", "Dhatura poisoning" ]
A
A i.e. Alcohol intoxication - Loss of judgment (ie poor judgment), loss of capacity for self criticism and decreased skilled motor movements are seen at 80 to 150 mg% of blood alcoholQ. - Mac Ewan's signQ, Morbid jealousyQ, Micturation syncope & Munich beer hea and alcohol gaze nystagmusare found in alcohol intoxicatio...
sciq
sciq_01_09282
What is the region known as the myelencephalon in the embryonic brain?
[ "Mesencephalon", "Telencephalon", "Diencephalon", "medulla" ]
D
Medulla The medulla is the region known as the myelencephalon in the embryonic brain. The initial portion of the name, “myel,” refers to the significant white matter found in this region—especially on its exterior, which is continuous with the white.
openbookqa
obqa_02_04516
Flashlights require batteries
[ "to make light bright rooms darker", "to meet weight requirements", "to be used as a weapon", "to properly illuminate objects" ]
D
a battery converts chemical energy into electrical energy
sciq
sciq_01_10283
How do you determine the atomic weight of an element?
[ "multiply protons and neutrons", "add up protons and neutrons", "divide protons and neutrons", "subtract protons from electrons" ]
B
The atomic weight of an element is a weighted average of its isotopes.
math_qa
mathqa_03_04337
the average of first 80 non - zero positive numbers is :
[ "22.25", "31.25", "35", "40.5" ]
D
"explanation : sum of first n natural numbers = n ( n + 1 ) / 2 so , average of first n natural numbers = n ( n + 1 ) / 2 n = ( n + 1 ) / 2 required average = ( 80 + 1 ) / 2 = 81 / 2 = 40.5 . answer : d"
math_qa
mathqa_03_00163
the product of a and b is equal to 11 more than twice the sum of a and b . if b = 5 , what is the value of b - a ?
[ "- 2", "5", "7", "24" ]
A
"ab = 11 + 2 ( a + b ) 5 a = 11 + 2 a + 10 3 a = 21 a = 7 b - a = 5 - 7 = - 2 a is the answer"
sciq
sciq_01_00208
In most animals, what sense is related to balance or equilibrium?
[ "feeling", "tasting", "vision", "hearing" ]
D
ARC-Easy
arc_04_02089
Toads lay their eggs in ponds. Tadpoles hatch from the eggs and eat the plants floating in the pond. Which resource is most important for toads to survive?
[ "grass", "rocks", "trees", "water" ]
D
null
sciq
sciq_01_00383
Different forms, or allotropes, of carbon are diamond, graphite, and what?
[ "vesicles", "carbonite", "fullerenes", "ligands" ]
C
Different forms, or allotropes, of carbon are diamond, graphite, and fullerenes.
math_qa
mathqa_03_04578
from a pack of cards , two cards are drawn one after the other , with replacement . what is the probability that the first card is a club and the second card is a king ?
[ "2 / 13", "1 / 26", "5 / 26", "1 / 52" ]
D
"p ( club ) = 1 / 4 p ( king ) = 1 / 13 p ( club then a king ) = 1 / 4 * 1 / 13 = 1 / 52 the answer is d ."
openbookqa
obqa_02_00092
What is an example of the fact that a thing is dead once it dies after having previously lived?
[ "a small squirrel falls from a tree and breaks its leg", "a panda stops eating and falls into a coma", "a dog is paralyzed and is unable to move", "a vibrant cat is deceased after being hit by a car" ]
D
if a living thing dies then that living thing is dead
sciq
sciq_01_02896
What did roots evolve from that plants used for aborption?
[ "oomycetes", "rhizoids", "seeds", "leguminous" ]
B
Roots are vascular organs that can penetrate soil and even rock. They absorb water and minerals from soil and carry them to leaves. They also anchor a plant in the soil. Roots evolved from rhizoids, which nonvascular plants had used for absorption.
medmcqa
medmcqa_05_00082
In an investigation to study the effect of smoking on renal cell carcinoma, it is observed that 30 out of 50 patients were smokers as compared to 10 out of 50 control subjects. The odd ratio of renal cell carcinoma associated with smoking will be
[ "3", "0.33", "6", "0.16" ]
C
Strength of association in a case control study: Case Control study cannot provide with incidences, so Relative risk cannot be calculated; so in case Control study, we calculate &;an estimate of Relative risk&; known as "Odds Ratio" (Cross Product ratio) CORRECT TABLE CONSTRUCTION in a case control study: table will ha...
sciq
sciq_01_08561
What radiation, generally produced by thermal motion and the vibration and rotation of atoms and molecules, literally means "below red"?
[ "infrared", "gamma radiation", "microscopic", "ultraviolet" ]
A
where k is a constant equal to Electric Potential.
sciq
sciq_01_06381
What cell structures capture light energy from the sun and use it with water and carbon dioxide to produce sugars for food?
[ "fibroblasts", "ribosomes", "chloroplasts", "nuclei" ]
C
Chloroplasts capture light energy from the sun and use it with water and carbon dioxide to produce sugars for food. Chloroplasts look like flat discs and are usually 2 to 10 micrometers in diameter and 1 micrometer thick. A model of a chloroplast is shown in Figure below . The chloroplast is enclosed by an inner and an...
medmcqa
medmcqa_05_00718
Latte's crust of blood stain is used to detect
[ "Detection species", "Secretor status", "Nature of stain", "Blood group" ]
D
Blood groups ABO, MNS and Rh are determined in a blood stain by (1) Latte&;s crust method. (2) Absorption- elution technique. (3) Absorption-inhibition. (4) Latex method. (5) Enzymological methods. TESTS FOR DETERMINING ABO GROUPING IN BLOOD STAINS : (1) TUBE METHOD : A drop of washed suspension of red cells is added t...
ARC-Easy
arc_04_01729
Which property of water can cause a rock to break apart?
[ "Water boiling at 100°C.", "Water losing energy slowly.", "Water expanding as it freezes.", "Water having a high surface tension." ]
C
null
ARC-Easy
arc_04_00707
Approximately how many times will Earth rotate during one revolution around the Sun?
[ "1", "28", "365", "1440" ]
C
null
sciq
sciq_01_08284
The goal of homeostasis is the maintenance of what, around a point or value called a set point?
[ "imbalance", "equilibrium", "steadiness", "agitation" ]
B
Homeostatic Process The goal of homeostasis is the maintenance of equilibrium around a point or value called a set point. While there are normal fluctuations from the set point, the body’s systems will usually attempt to go back to this point. A change in the internal or external environment is called a stimulus and is...
sciq
sciq_01_10858
What system of organs delivers blood to all cells of the body?
[ "gastrointestinal", "respiratory", "cardiovascular", "integumentary" ]
C
The cardiovascular system is the system of organs that delivers blood to all the cells of the body. It’s like the body’s lifeline. Without the cardiovascular system circulating your blood, you couldn’t survive.
sciq
sciq_01_06538
What is the term for the horizontal displacement of a projectile from its starting point?
[ "Distance", "type", "produce", "range" ]
D
In projectile motion, the horizontal displacement of an object from its starting point is called its range.
medmcqa
medmcqa_05_01641
Ladder pattern of DNA electrophoresis in apoptosis is caused by the action of the following enzyme
[ "Endonuclease", "Transglutaminase", "DNAse", "Caspase" ]
A
1.Apoptosis progresses quickly and its products are quickly removed, making it difficult or visualize. 2.During karyorrhexis endonuclease activation leaves sho DNA fragments, regularly spaced in size. 3.this gives a characteristic laddered appearance on agar gel electrophoresis. 4.This laddered pattern is characteristi...
sciq
sciq_01_09890
What do you call the daily changes in the level of ocean water?
[ "shores", "waves", "currents", "tides" ]
D
Tides are daily changes in the level of ocean water. They occur all around the globe. High tides occur when the water reaches its highest level in a day. Low tides occur when the water reaches its lowest level in a day. Tides keep cycling from high to low and back again. In most places the water level rises and falls t...
sciq
sciq_01_03358
What do opposite charges do to one another?
[ "strengthen", "repel", "attract", "weaken" ]
C
Opposite charges attract, and like charges repel.
medmcqa
medmcqa_05_01445
The co-factor for glycogen phosphorylase in glycogenolysis is:
[ "Thiamine pyrophosphate", "Pyridoxal phosphate", "Citrate", "FAD" ]
B
Glycogen phosphorylase catalyses the rate limiting step in glycogenolysis by catalyzing the phosphorolytic cleavage of glycogen to yield glucose 1-phosphate. Glycogen phosphorylase requires pyridoxal phosphate as its coenzyme.
medmcqa
medmcqa_05_02949
Patient diagnosed as squamous cell intraepithelial lesion which of the following has the highest risk for progression to carcinoma :
[ "Low grade squamous intraepithelial neoplasia", "High grade squamous intraepithelial neoplasia", "Squamous intraepithelial associated with HPV 16", "Squamous intraepithelial neoplasia associated with HIV" ]
B
Ans. is b i.e. High grade squamous intraepithelial neoplasia There are various nomenclatures / classification systems for repoing of Pap smear. The one which is classically used is by WHO, which uses the terms CIN-I, CIN-II and CIN-III (as discussed in chapter on CIN). Another system is devised Bethesda. It classifies ...
math_qa
mathqa_03_02810
in a school of 850 boys , 40 % of muslims , 28 % hindus , 10 % sikhs and the remaining of other communities . how many belonged to the other communities ?
[ "a", "b", "c", "d" ]
C
"40 + 28 + 10 = 78 % 100 – 78 = 22 % 850 * 22 / 100 = 187 answer : c"