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7.76k
sciq
sciq_01_00789
Soda fizzes when what common gas comes out of solution?
[ "helium", "carbon monoxide", "carbon dioxide", "nitrous oxide" ]
C
Soda fizzes when carbon dioxide comes out of solution. Which do you think will fizz more, warm soda or cold soda?.
sciq
sciq_01_07297
The fetus becoming relatively large and mature before birth increases the chances of what?
[ "survival", "intelligence", "disease", "mutations" ]
A
The placenta permits a long period of fetal growth. As a result, the fetus can become relatively large and mature before birth. This increases its chances of survival. On the other hand, supporting a growing fetus may be difficult for the mother. She has to eat more while pregnant and may become less mobile as the fetu...
sciq
sciq_01_00545
Active and passive forms of what enable the body to resist damage from pathogens?
[ "immunity", "potential", "stem cells", "autonomy" ]
A
Active versus Passive Immunity Immunity to pathogens, and the ability to control pathogen growth so that damage to the tissues of the body is limited, can be acquired by (1) the active development of an immune response in the infected individual or (2) the passive transfer of immune components from an immune individual...
medmcqa
medmcqa_05_03218
Endotracheal tube size in a full term infant?
[ "2.5 mm", "3.5 mm", "4.5 mm", "5.5 mm" ]
B
Age Internal Diameter (mm) Cut length (cm) Full- term infant 3.5 12 Child 4+Age/4 12+Age/2 Adult Female 7.0-7.5 24 Male 7.5-9.0 24
ARC-Easy
arc_04_02025
Why are most fossils found in sedimentary rocks?
[ "Sedimentary rocks are not very old.", "Organisms live only in areas with sedimentary rock.", "Organisms can be preserved in sedimentary rock.", "Sedimentary rocks are found only at the surface of the ground." ]
C
null
medmcqa
medmcqa_05_03223
The organ NOT involved by endometriosis:
[ "Liver", "Lymph nodes", "Brain", "Spleen" ]
D
Ans. is d, i.e. SpleenRef: Williams Gynecology, 3/ed, p23One pathological review revealed that endometriosis has been identified in all organs except spleen.
sciq
sciq_01_04716
Where do oceans absorb gases from?
[ "stratosphere", "wind", "sunlight", "atmosphere" ]
D
Oceans are an important part of the water cycle. They absorb gases from the atmosphere. They evaporate and supply water vapor to the atmosphere.
ARC-Easy
arc_04_01332
A fox grows thicker fur as a season changes. This adaptation helps the fox to
[ "find food", "keep warmer", "grow stronger", "escape from predators" ]
B
null
sciq
sciq_01_01972
The law of conservation mass states that matter cannot be created or what?
[ "destroyed", "moved", "observed", "changed" ]
A
The law of conservation of mass states that matter cannot be created or destroyed.
medmcqa
medmcqa_05_02436
The average number of adult female mites on an individual suffering from the common form of scabies is about:
[ "2", "12", "16", "24" ]
B
The average number of adult female mites on an individual suffering from the common form of scabies is about 12. Only in crusted (Norwegian) scabies are large numbers of mites present. Ref: Rook's textbook of dermatology, 8th edition Pg 38.37.
openbookqa
obqa_02_02879
Two birds in completely different houses can discuss something by
[ "sitting", "thinking", "vocalizing", "sleeping" ]
C
sound can be used for communication by animals
math_qa
mathqa_03_00764
a cube of edge 15 cm is immersed completely in a rectangular vessel containing water . if the dimensions of the base of vessel are 20 cm * 14 cm , find the rise in water level ?
[ "6 cm", "12.05 cm", "11.25 cm", "15.12 cm" ]
B
"increase in volume = volume of the cube = 15 * 15 * 15 cm ^ 3 rise in water level = volume / area = 15 * 15 * 15 / 20 * 14 = 12.05 cm answer is b"
openbookqa
obqa_02_03284
A potato that is placed in a roaring bonfire, when compared to a potato left in a warm oven for an hour, will
[ "chill", "freeze", "scorch", "float" ]
C
if too much heat is transferred to an object then that object may burn
ARC-Challenge
arc_04_02826
Which is an example of organic weathering of rocks?
[ "glaciers moving large pieces of a fractured rock", "tree roots growing in a fractured rock", "ice freezing on a rock surface", "wind blowing sand against a rock surface" ]
B
null
math_qa
mathqa_03_02035
it takes avery 3 hours to build a brick wall while tom can do it in 2 hours . if the two start working together and after an hour avery leaves , how much time will it take tom to complete the wall on his own ?
[ "20", "30", "40", "50" ]
A
"avery takes 3 hours tom takes 2 hours efficiency of avery is 1 / 3 units / hr efficiency of tom is 1 / 2 units / hr combined efficiency of tom and avery is 1 / 3 + 1 / 2 = 5 / 6 units / hr since they worked for 1 hour they completed 5 / 6 units of work and 1 / 6 units of work is left which is to be completed by tom ( ...
sciq
sciq_01_01702
What has the average global temperature done since the 1900s?
[ "changed randomly", "risen", "decreased", "stayed constant" ]
B
Average global temperature has risen since 1900.
math_qa
mathqa_03_01954
a garden center sells a certain grass seed in 5 - pound bags at $ 13.85 per bag , 10 - pound bags at $ 20.40 per bag , and 25 - pound bags $ 32.25 per bag . if a customer is to buy at least 65 pounds of the grass seed , but no more than 80 pounds , what is the least possible cost of the grass seed that the customer wil...
[ "$ 94.03", "$ 96.75", "$ 98.75", "$ 102.07" ]
C
"there can be 2 cases 1 ) 25 + 25 + 10 + 5 = $ 98.75 or 2 ) 25 + 25 + 25 = $ 96.75 c"
medmcqa
medmcqa_05_02493
A wave in ERG is due to activity of-
[ "Pigmented epithelium", "Rods and cones", "Ganglion cell", "Bipolar cell" ]
B
Ans. is 'b' i.e.. Rods and cones Electroretinogramo The changes induced by the stimulation of light in the resting potential of the eye are measured by electroretinography. It is extinguished or absent in complete failure of function of rods and cones, e.g. pigmentary retinal dystrophy, complete occlution of retinal ar...
sciq
sciq_01_08320
In which sphere of the atmosphere do the northern and southern lights occur?
[ "ionosphere", "lithosphere", "stratosphere", "thermosphere" ]
D
The thermosphere is the layer above the mesosphere. Temperature increases with altitude in this layer. The northern and southern lights occur here.
openbookqa
obqa_02_01846
Reproduction produces
[ "bacteria", "light", "carrots", "farrow" ]
D
reproduction produces offspring
sciq
sciq_01_11678
What do you call a structure composed of two or more types of tissues that work together to do a specific task?
[ "system", "marrow", "cell", "organ" ]
D
An organ is a structure composed of two or more types of tissues that work together to do a specific task. Most modern plants have several organs that help them survive and reproduce in a variety of habitats. Major organs of most plants include roots, stems, and leaves. These and other plant organs generally contain al...
openbookqa
obqa_02_00286
Seasons are caused by
[ "weather patterns", "earth's movement pattern", "weather changes", "weather cycles" ]
B
the Earth being tilted on its axis causes seasons
openbookqa
obqa_02_01129
A way in which sound may be heard is
[ "eating out of a bowl", "moving pots and pans", "moving a cardboard box", "a small plastic cup" ]
B
matter vibrating can cause sound
sciq
sciq_01_01827
Which word describes how an extracellular solution can change the volume of a cell by affecting osmosis?
[ "instability", "trichina", "tonicity", "velocity" ]
C
Tonicity Tonicity describes how an extracellular solution can change the volume of a cell by affecting osmosis. A solution's tonicity often directly correlates with the osmolarity of the solution. Osmolarity describes the total solute concentration of the solution. A solution with low osmolarity has a greater number of...
ARC-Easy
arc_04_00364
The spectrum of visible light can be seen in a rainbow because white light is
[ "reflected and transmitted.", "refracted and dispersed.", "absorbed and diffracted.", "produced and emitted." ]
B
null
sciq
sciq_01_10202
The rate of evolution is influenced by the rate of changes to what?
[ "the earth", "migration", "dna", "the environment" ]
D
The rate of evolution is influenced by how quickly the environment is changing. Long periods of gradual evolutionary change may be interrupted by short bursts of rapid change.
sciq
sciq_01_02456
Where do two or more bones of the skeleton meet?
[ "valves", "muscle paths", "joints", "junctures" ]
C
Joints are places where two or more bones of the skeleton meet. With the help of muscles, joints allow the body to move with relatively little force. Some joints can move more than others.
ARC-Easy
arc_04_01744
The yellow-throated longclaw is a bird that lives on the dry savanna of Africa. It looks almost exactly like another bird, the western meadowlark of North America. Although the birds look very similar, they are not even in the same taxonomic family. Scientists think the birds look alike because the two species develope...
[ "sexual selection", "disruptive selection", "divergent evolution", "convergent evolution" ]
D
null
sciq
sciq_01_09577
What compounds contain only carbon and hydrogen?
[ "particles", "carbonates", "hydrocarbons", "molecules" ]
C
You can tell that this sponge is saturated with water because when it is squeezed, the water pours out. When something is saturated with water, it already holds as much water as possible. Compounds called hydrocarbons, which contain only carbon and hydrogen, can also be saturated, but not with water.
medmcqa
medmcqa_05_03309
S shaped eyelid is seen in
[ "Arterio venous fistula", "Ulcerative blepharitis", "Plexiform neurofibroma", "Horner's syndrome" ]
C
Plexiform neurofibromas - Bag of worm consistency and S shaped eyelid deformity.
sciq
sciq_01_03083
Terrestrial animals lose water by evaporation from their skin and which surfaces?
[ "anaerobic", "digestive", "respiratory", "pulmonary" ]
C
math_qa
mathqa_03_01309
a man purchased 3 blankets @ rs . 100 each , 5 blankets @ rs . 150 each and two blankets at a certain rate which is now slipped off from his memory . but he remembers that the average price of the blankets was rs . 160 . find the unknown rate of two blankets ?
[ "420", "550", "490", "450" ]
B
"10 * 160 = 1600 3 * 100 + 5 * 150 = 1050 1600 – 1050 = 550 answer : b"
math_qa
mathqa_03_02272
find the amount on rs . 5000 in 2 years , the rate of interest being 10 % per first year and 12 % for the second year ?
[ "3377", "6160", "5460", "1976" ]
B
5000 * 110 / 100 * 112 / 100 = > 6160 answer : b
sciq
sciq_01_02979
What type of coal deposits are the most extensive ever formed?
[ "precambrian", "mesozoic", "jurassic", "carboniferous" ]
D
sciq
sciq_01_05049
Hydrostatic skeletons are well suited for life in what kind of environments?
[ "surface", "bacterial", "pelagic", "aquatic" ]
D
math_qa
mathqa_03_02581
a person decided to build a house in 100 days . he employed 100 men in the beginning and 100 more after 25 days and completed the construction in stipulated time . if he had not employed the additional men , how many days behind schedule would it have been finished ?
[ "7", "5", "2", "3" ]
B
"200 men do the rest of the work in 100 - 25 = 75 days 100 men can do the rest of the work in 75 * 200 / 100 = 75 days required number of days = 75 - 80 = 5 days answer is b"
medmcqa
medmcqa_05_03656
Which of the following is quantitatively the major contributor to routine clinical measurements of circulating plasma cholesterol concentrations?
[ "Chylomicrons", "Low-density lipoproteins (LDLs)", "High-density lipoproteins (HDLs)", "Intermediate-density lipoproteins (IDLs)" ]
B
LDLs are the primary carriers of blood cholesterol. Routine plasma lipid measurements are carried out after a 12-hr fast. In this way, the major endogenous plasma lipoproteins, VLDLs, and the major exogenous plasma lipoproteins (chylomicrons) have been cleared from the blood of normal individuals. LDLs, which are the e...
sciq
sciq_01_06875
Which type of eruptions created the entire ocean floor?
[ "fissure eruptions", "fault eruptions", "lava effusion", "formation eruptions" ]
A
The most obvious landforms created by lava are volcanoes. These are mostly cinder cones, composite volcanoes, and shield volcanoes. Eruptions also take place through other types of vents, commonly from fissures ( Figure below ). The eruptions that created the entire ocean floor are essentially fissure eruptions.
ARC-Easy
arc_04_00467
Animals get energy for growth and repair from
[ "soil", "food", "water", "air" ]
B
null
sciq
sciq_01_05043
What is the name of the outer layer of skin?
[ "hypodermis", "the dermis", "the epidermis", "endodermis" ]
C
The epidermis is the outer layer of skin, consisting of epithelial cells and little else (see Figure below ). For example, there are no nerve endings or blood vessels in the epidermis. The innermost cells of the epidermis are continuously dividing through mitosis to form new cells. The newly formed cells move up throug...
openbookqa
obqa_02_02616
The ocean contains large amounts of what?
[ "people", "salty biscuits", "fires", "saline liquids" ]
D
the ocean contains large amounts of salt water
sciq
sciq_01_06249
What is the name for a series of changes in the reproductive system of mature females that repeats every month on average?
[ "periodic table", "urinary cycle", "puberty", "menstrual cycle" ]
D
Egg production in the ovary is part of the menstrual cycle. The menstrual cycle is a series of changes in the reproductive system of mature females that repeats every month on average. These changes include the development of an egg and follicle in the ovary.
sciq
sciq_01_11488
New land can be created when what happens to a volcano?
[ "it erupts", "it dies", "it evolves", "it stays dormant" ]
A
New land can be created by volcanic eruptions.
math_qa
mathqa_03_03827
what percentage of numbers from 1 to 60 have 1 or 9 in the unit ' s digit ?
[ "12", "14.11", "18.33", "20" ]
C
"clearly , the numbers which have 1 or 9 in the unit ' s digit , have squares that end in the digit 1 . such numbers from 1 to 60 are 1 , 9 , 11 , 19 , 21 , 29 , 31 , 39 , 41 , 49 , 51 , 59 number of such number = 11 answer : c"
openbookqa
obqa_02_02365
An acre of arctic land, when compared to an acre of jungle land will have
[ "more living things", "more life forms", "more organisms", "fewer living things" ]
D
cold environments contain few organisms
medmcqa
medmcqa_05_00992
Most common ovarian tumour in pregnancy is :
[ "Mucinous cyst adenoma", "Dermoid cyst", "Metastasis", "Dysgerminoma" ]
B
Ans. is b i.e. Dermoid cyst "Dysgerminomas are the most common malignant tumor diagnosed during pregnancy but overall most common is dermoid cyst." Most common tumour of ovary in pregnancy is serous cystadenoma but most cases remain undiagnosed, However, incidence of dermoid cyst increase two times in pregnancy and it ...
sciq
sciq_01_02881
What is the term for dating a rock based on composition decay?
[ "radioactive dating", "fuel dating", "safe dating", "carbon dating" ]
A
There are other forms of radioactive dating. Rocks, for example, can sometimes be dated based on the decay of 238 U . The decay series for 238 U ends with 206 Pb , so that the ratio of these nuclides in a rock is an indication of how long it has been since the rock solidified. The original composition of the rock, such...
sciq
sciq_01_11495
Coxal glands collect liquid waste from what?
[ "lungs", "blood", "heart", "plasma" ]
B
Some arthropods have special excretory structures. They are called coxal glands and Malpighian tubules . Coxal glands collect and concentrate liquid waste from blood. They excrete the waste from the body through a pore. Malphigian tubules carry waste from the digestive tract to the anus. The waste is excreted through t...
openbookqa
obqa_02_04807
Who is most likely to die of old age?
[ "adults", "children", "infants", "reasonable high-school students" ]
A
adulthood is a stage in the life cycle process
openbookqa
obqa_02_02600
What might be harder to digest?
[ "corn", "spinach", "water", "eggs" ]
A
the breaking down of food into simple substances occurs in the digestive system
math_qa
mathqa_03_02986
one fourth of one third of two fifth of a number is 20 . what will be 40 % of that number
[ "a", "b", "c", "d" ]
D
explanation : ( 1 / 4 ) * ( 1 / 3 ) * ( 2 / 5 ) * x = 20 then x = 20 * 30 = 600 40 % of 600 = 240 answer : option d
medmcqa
medmcqa_05_02957
The following structure does not pass through flexor retinaculurn
[ "Ulnar N.", "Median N.", "Flexor digitorum profundus", "Flexor digitorum superficialis" ]
A
Ulnar nerve Flexor retinaculum (F.R.)Is a thickening of deep fascia which bridges the ant. concavity of the carpus and conves it into an osteofascial tunnel, the carpal tunnel.Structures passing beneath the flexor retinaculum from medial to lateral are:Flexor digitorum superficialis tendon & post. to these flexor digit...
openbookqa
obqa_02_01970
If a person is lost in an arid space with little rainfall, they can live longer if they
[ "use water barely", "use water freely", "use water liberally", "use water gratefully" ]
A
conserving water can be used for survival in a dry environment
sciq
sciq_01_02699
What connects the fetus to the placenta?
[ "eustachian tube", "fallopian tube", "microbial cord", "umbilical cord" ]
D
The fetus is connected to the placenta through the umbilical cord.
math_qa
mathqa_03_04937
if the sides of a triangle are 91 cm , 84 cm and 35 cm , what is its area ?
[ "120 cm 2", "1470 cm 2", "216 cm 2", "197 cm 2" ]
B
"the triangle with sides 91 cm , 84 cm and 35 cm is right angled , where the hypotenuse is 91 cm . area of the triangle = 1 / 2 * 84 * 35 = 1470 cm 2 answer : b"
openbookqa
obqa_02_04053
If all the water in the Atlantic ocean evaporated, the Atlantic ocean will
[ "get bigger", "become a lake", "cease to exist", "get smaller" ]
C
if a body of water loses all water then that body of water does not exist any more
openbookqa
obqa_02_00698
Potential energy changes to kinetic energy when using a
[ "computer", "light bulb", "television", "bicycle" ]
D
potential energy changes to kinetic energy through motion
math_qa
mathqa_03_01851
in traveling from a dormitory to a certain city , a student went 1 / 2 of the way by foot , 1 / 4 of the way by bus , and the remaining 6 kilometers by car . what is the distance , in kilometers , from the dormitory to the city ?
[ "35", "24", "14", "24" ]
D
"whole trip = distance by foot + distance by bus + distance by car x = 1 / 2 x + 1 / 4 x + 6 x - 1 / 2 x - 1 / 4 x = 6 x = 24 km option : d"
ARC-Challenge
arc_04_02457
Most volcanoes develop due to interactions between two tectonic plates. Which of the tectonic plate interactions is least likely to produce volcanic activity?
[ "two diverging oceanic plates", "two converging oceanic plates", "two diverging continental plates", "two converging continental plates" ]
D
null
sciq
sciq_01_09158
What is the second state of photosynthesis?
[ "calvin cycle", "glover cycle", "Phillip cycle", "morton cycle" ]
A
openbookqa
obqa_02_04181
If you want to watch TV it must first have
[ "more Chinese parts", "a flux capacitor", "been plugged in", "a cloudless day" ]
C
an electrical device requires electricity to turn on
ARC-Easy
arc_04_00494
Which of these properties of water helps moderate the weather of coastal areas?
[ "neutral pH", "high specific heat", "dissolves many substances", "floats as a solid" ]
B
null
medmcqa
medmcqa_05_02503
The major fate of glucose-6 Phosphate in tissue in a well fed state is:
[ "Hydrolysis to glucose", "Conversion to glycogen", "Isomerization to fructose 6 phosphate", "Conversion to ribulose 5 phosphate" ]
B
B i.e. Conversion to Glycogen
medmcqa
medmcqa_05_01653
Karyopyknotic index is a method for?
[ "Ovarian carcinoma", "Hormonal evaluation", "Dysplasia measurement", "Measurement of cells in active replication" ]
B
Ans. (b) Hormonal evaluationKaryopyknotic index' is a method for Hormonal evaluation; Has nothing to do with karyotyping Karyopyknotic index is % of intermediate and superficial cells of squamous epithelium of vagina which have pyknotic nuclei.
openbookqa
obqa_02_03136
A bear in the arctic can go a long time without eating
[ "if it is focused", "if it is determined", "if it is working", "if it has excess chub" ]
D
an animal can survive in an environment with little food by storing fat
medmcqa
medmcqa_05_02891
Which is the most common site of rhabdomyosarcoma?
[ "Orbit", "Nasopharynx", "Extremities", "Hypopharynx" ]
A
The most common primary sites for RMS are the head and neck (paicularly orbit and parameninges) 35%, the genitourinary tract (22%), and extremities (18%). Rhabdomyosarcoma is the most common primary malignant tumor of the orbit in childhood. It is most common soft tissue sarcoma in childhood. It arise from tissue resem...
openbookqa
obqa_02_02539
Which of the following will most likely to be true?
[ "focused light beams like lasers can endanger pilots", "napkins can endanger pilots", "sweaters can endanger pilots", "teddy bears can endanger pilots" ]
A
a laser is used for producing light
openbookqa
obqa_02_01417
If an object is close then how will that object appear?
[ "gigantic", "minute", "small", "tiny" ]
A
if an object is close then that object will appear large
openbookqa
obqa_02_03452
What is the source of energy for physical cycles on Earth?
[ "the closest planet to earth", "the closest yellow dwarf star", "the seven different oceans", "various gas powered engines" ]
B
the sun is the source of energy for physical cycles on Earth
sciq
sciq_01_01846
What system protects the soft organs of the body?
[ "nervous system", "Cardiovascular system", "digestive system", "skeletal system" ]
D
The skeletal system protects the soft organs of the body. For example, the skull surrounds and protects the brain. The ribs protect the heart and lungs.
ARC-Easy
arc_04_00458
It is necessary to add a day to the calendar every four years because
[ "the axis of Earth is tilted.", "the gravitational pull of the Sun affects Earth's revolution.", "the revolution of Earth is not exactly 365 days.", "the Moon crosses the orbit of the Sun every 28 days." ]
C
null
sciq
sciq_01_04847
Groundwater does what to the rock beneath the ground surface?
[ "erodes it", "boosts it", "accelerates it", "creates it" ]
A
Groundwater erodes rock beneath the ground surface. Limestone is a carbonate and is most easily eroded.
sciq
sciq_01_11186
What is the ability of a material to return to its original shape after being stretched or compressed?
[ "solubility", "acidity", "viscosity", "elasticity" ]
D
Elasticity is the ability of a material to return to its original shape after being stretched or compressed. Elastic force is the counter force that resists the stretching or compressing of an elastic material.
medmcqa
medmcqa_05_01615
What is peau d'orange?
[ "Cutaneous lymphatic edema due to infiltration of subdermal lymphatics", "Radiation associated edema of breast", "Radiation associated limb edema", "Limb edema associated with axillary lymph node dissection" ]
A
Ans. is 'a' i.e., Cutaneous lymphatic edema due to infiltration of subdermal lymphatics o Peau d' orange is due to cutaneous lymphatic edema, where the infiltrated skin is tethered by the sweat ducts, it cannot swell, leading to an appearance like orange skin.o Has been explained in previous sessions
math_qa
mathqa_03_04791
if the cost price of 72 articles is equal to the selling price of 60 articles , then what is the percent profit ?
[ "10 %", "15 %", "20 %", "25 %" ]
C
"let x be the cost price of one article . let y be the selling price of one article . 60 y = 72 x y = 1.2 x the answer is c ."
openbookqa
obqa_02_01527
A person turns a flashlight on and points it at a cut stone, which results in
[ "flower patterns", "varied hues", "varied light scents", "sizes of elephants" ]
B
refraction is when light bends
openbookqa
obqa_02_00932
What tool would be most helpful in aiding indoor plants in photosynthesis
[ "music", "cover", "Fertilizer", "a large window" ]
D
photosynthesis means producers convert from carbon dioxide, water, and solar energy into food for themselves
sciq
sciq_01_05538
What is in the soil that causes mars to look red?
[ "carbon", "sand", "garnet", "iron" ]
D
Viewed from Earth, Mars is red. This is due to large amounts of iron in the soil. The ancient Greeks and Romans named the planet Mars after the god of war. The planet's red color reminded them of blood. Mars has only a very thin atmosphere, made up mostly of carbon dioxide.
sciq
sciq_01_08285
What type of energy of a system is the sum of the kinetic and potential energies of its atoms and molecules?
[ "external energy u", "deep energy u", "internal energy u", "primary energy u" ]
C
Internal Energy U We can think about the internal energy of a system in two different but consistent ways. The first is the atomic and molecular view, which examines the system on the atomic and molecular scale. The internal energy U of a system is the sum of the kinetic and potential energies of its atoms and molecule...
ARC-Easy
arc_04_01785
According to the endosymbiotic theory, double-membrane mitochondria originated as a result of some larger eukaryotic cells with flexible membranes engulfing smaller prokaryotic cells. Which of these explains where the outer layer of the double membrane of the mitochondria originated?
[ "the plasma membrane of the eukaryotic host", "the nuclear membrane of the eukaryotic host", "the ribosomes of the engulfed prokaryotic cell", "the lysosomes of the engulfed prokaryotic cell" ]
A
null
sciq
sciq_01_07070
On the origin of species is a book by darwin that spells out what theory?
[ "theory of evolution", "theory of the universe", "theory of reproduction", "theory of the computation" ]
A
Wallace’s paper on evolution confirmed Darwin’s ideas. It also pushed him to publish his book, On the Origin of Species. The book clearly spells out his theory. It also provides evidence and logic to support it.
sciq
sciq_01_01465
What is the unit of evolution?
[ "the population", "the cell", "dna", "a phylum" ]
A
The population is the unit of evolution.
sciq
sciq_01_08825
What is made and stored primarily in the cells of the liver and muscles?
[ "glucose", "oxygen", "glycogen", "carbon dioxide" ]
C
Glycogen is an even more highly branched polysaccharide of glucose monomers that serves a function of energy storage in animals. Glycogen is made and stored primarily in the cells of the liver and muscles.
math_qa
mathqa_03_01354
if [ [ x ] ] = x ^ 2 + 2 x + 4 , what is the value of [ [ 5 ] ] ?
[ "39", "9", "15", "19" ]
A
"these functions questions might look intimidating , but they just test your knowledge about how well you can substitute values [ [ x ] ] = x ^ 2 + 2 x + 4 [ [ 5 ] ] = 5 ^ 2 + 2 * 5 + 4 = 39 . option a"
math_qa
mathqa_03_01340
a person is traveling at 65 km / hr and reached his destiny in 3 hr then find the distance ?
[ "205 km", "195 km", "295 km", "115 km" ]
B
"t = 3 hrs d = t * s = 65 * 3 = 195 km answer is b"
math_qa
mathqa_03_04817
the roof of an apartment building is rectangular and its length is 4 times longer than its width . if the area of the roof is 676 feet squared , what is the difference between the length and the width of the roof ?
[ "39 .", "40 .", "42 .", "44 ." ]
A
"let the width = x x * 4 x = 676 x ^ 2 = 169 x = 13 length = 4 * 13 = 52 difference = 52 - 13 = 39 a is the answer"
sciq
sciq_01_06226
What are the things moving under the earth's mantle that move the crust?
[ "plates", "crystals", "ridges", "lava channels" ]
A
What portion of Earth makes up the “plates” in plate tectonics? Again, the answer came about in part due to war. In this case, the Cold War. The scientists set up seismometer networks during the 1950s and early 1960s. The purpose was to see if other nations were testing atomic bombs. Since seismometers measure ground s...
medmcqa
medmcqa_05_01636
Which of the following strategy has been recommended to reduce the heredity risk for ovarian cancer in women with BRCA - 1 and BRCA - 2 mutations:
[ "Use of oral contraceptive pills", "Screening with transvaginal ultrasound", "Screening with CA - 125", "Prophylactic oophorectomy" ]
D
As discussed in previous question: • BRCA-1 and BRCA-2 are tumour suppressor genes. • Individuals who inherit mutations of BRCA-1 and BRCA-2 are highly susceptible for the development of hereditary breast or ovarian cancer. The mutations are inherited as autosomal dominant. Strategies for prevention of hereditary ovari...
medmcqa
medmcqa_05_02333
Lesion of facial nerve at level of stylomastoid foramen leads to:
[ "a)Loss of taste sensation from Ant. 2/3 of tongue", "Paralysis of orbicularis oculi muscle", "Loss of innervation to stapedius", "Loss of Lacrimal secretion" ]
B
Involvement of "chordatympanic nerve" near its point of origin in the facial canal is accompanied by paralysis of motor, gustatory and autonomic functions of nerve. Involvement of nerve after the level of stylomastoid foramen (Eg: sarcoidosis of parotid, melkerson rosenthal syndrome) results in paralysis of facial musc...
math_qa
mathqa_03_02075
find the cost of fencing around a circular field of diameter 32 m at the rate of rs . 1.50 a meter ?
[ "287", "132", "150.9", "158" ]
C
"2 * 22 / 7 * 16 = 100.6 100.6 * 1 1 / 2 = rs . 150.9 answer : c"
sciq
sciq_01_07011
What is the name of the fungi that are ubiquitous in lakes and soil?
[ "eomycota", "zygomycota", "sporozoans", "chytrids" ]
D
medmcqa
medmcqa_05_02431
Ecbolics are the drugs which
[ "Cause uterine contraction", "Increase menstrual blood flow", "Increases sweating", "Causes vomitting" ]
A
Ecbolics: They increase uterine contractions, e.g. ergot preparations, synthetic estrogens, pituitary extract, strychnine or quinine. Ref - Krishan Vij textbook of forensic medicine and toxicology 5e pg - 383
sciq
sciq_01_07030
Portal veins carry blood between what?
[ "pairs of capillary beds", "chambers of the heart", "arteries", "digestive organs" ]
A
math_qa
mathqa_03_04081
in triangle pqr , the angle q = 90 degree , pq = 7 cm , qr = 8 cm . x is a variable point on pq . the line through x parallel to qr , intersects pr at y and the line through y , parallel to pq , intersects qr at z . find the least possible length of xz
[ "5.6 cm'", "2.4 cm'", "4.8 cm'", "2.16 cm'" ]
A
look at the diagram below : now , in case when qy is perpendicular to pr , two right triangles pqr and pqy are similar : qy : qp = qr : pr - - > qy : 7 = 8 : 10 - - > qy = 5.6 . answer : a .
medmcqa
medmcqa_05_03337
The anti-malarial drug belonging to 8-aminoquinoline derivatives?
[ "Doxycycline", "Quinidine", "Primaquine", "Chloroquine" ]
C
8-aminoquinoline derivatives are primaquine, bulaquine, and tafenoquine.4 Aminoquinoline is Chloroquine.Ref: Sharma and Sharma 2nd edition; pg 809.
sciq
sciq_01_11051
On insects, what are the openings on the sides of the abdomen that allows respiration to occur?
[ "gills", "spiracles", "chloroplasts", "wings" ]
B
Respiration that occurs without lungs. Insects have a system of internal tubes and sacs that oxygen travels through to reach body tissues. Air is taken in through the spiracles , openings on the sides of the abdomen.
ARC-Easy
arc_04_01585
Who was a leading authority on continental drift in the early 1900s?
[ "Alfred Wegener", "Albert Einstein", "Charles Richter", "Charles Darwin" ]
A
null
ARC-Easy
arc_04_00153
In an accurate diagram of the solar system, which object would be shown closest to Earth?
[ "the Moon", "the asteroid belt", "Mars", "Saturn" ]
A
null
openbookqa
obqa_02_02127
Which relationship is accurate?
[ "rabbits always eat producers", "plants eat rabbits which eat plants", "rabbits eat plants which eat plants", "plants eat plants which eat plants" ]
A
a consumer can not produce its own food
medmcqa
medmcqa_05_03415
A 46-year-old male presents to OPD with diarrhea and abdominal pain. On investigations, it was found to be non-infective and you proceed with diphenoxylate therapy in this patient. Which of the following is the primary target for the drug you prescribed to this patient?
[ "Secretion", "Digestion", "Inflammation", "Motility" ]
D
Diphenoxylate - is an opioid - it binds to mu receptors in the GIT - works by slowing motility of GIT.