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7.76k
sciq
sciq_01_01510
Adult sea stars have what kind of symmetry?
[ "radial symmetry", "skeletal symmetry", "hydrological symmetry", "biological symmetry" ]
A
Adult sea stars and other echinoderms have obvious radial symmetry. What evidence supports the claim that echinoderms evolved from an ancestor with bilateral symmetry?.
medmcqa
medmcqa_05_00379
A 24 year old underweight woman presents to you with progressive abdominal discomfo, dyspnoea, nausea and vomiting. Abdominal examination revealed cystic enlargement of ovaries. Relevant investigations results are as follows: Hematocrit - 57% Total count - 25000 /mm3 RFT -Impaired LFT - Mildly impaired USG - Massive as...
[ "Budd Chiari syndrome", "Meigs syndrome", "Ovarian hyperstimulation syndrome", "Pseudomyxoma peritonei" ]
C
Here note that the serum peak oestradiol is very high and she had received an injection as a pa of her treatment for infeility which may have been human chorionic gonadotropin. This resulted in ovarian hyperstimulation syndrome. In Budd Chiari syndrome or Meigs syndrome oestradiol need not be this high. Note that throm...
sciq
sciq_01_08024
What do voltmeters measure?
[ "voltage increase across a resistor", "current increase across a resistor", "current drop across a resistor", "voltage drop across a resistor" ]
D
Voltmeters measure the voltage drop across a resistor.
ARC-Easy
arc_04_00918
Which system supports the body, protects internal organs, and makes blood cells?
[ "muscular system", "circulatory system", "nervous system", "skeletal system" ]
D
null
sciq
sciq_01_01577
Glycolysis harvests chemical energy by oxidizing glucose to what?
[ "oxygen", "chlorophyll", "pyruvate", "cellulose" ]
C
9.2 Glycolysis harvests chemical energy by oxidizing glucose to pyruvate.
sciq
sciq_01_00753
What are needed to oxidize the noble gases to form compounds in positive oxidation states?
[ "protein oxidants", "bacteria oxidants", "metal oxidants", "potent oxidants" ]
D
Potent oxidants are needed to oxidize the noble gases to form compounds in positive oxidation states.
openbookqa
obqa_02_03158
To look at an eclipse you might be able to use
[ "nothing", "telescope", "Plain old sunglasses", "a box" ]
D
looking directly at an eclipse of the Sun causes harm to the eyes
medmcqa
medmcqa_05_01131
Umbilical aery doppler finding which will most significantly predict the intrauterine deaths of the foetus -
[ "Reversal of diastolic flow", "Absent diastolic flow", "Absent systolic flow", "Presence of diastolic notch" ]
A
Please note, the question is 'Which pattern predicts fetal death' hence do not mark 'Absent systolic flow' which no more predicts, but is diagnostic of fetal death. Reversal of diastolic flow most significantly predict the intra uterine deaths of the foetus. Umbilical aery doppler done to assess fetal well being in hig...
openbookqa
obqa_02_02743
If a bird is avoiding detection by a cat simply by sitting still, it probably is also utilizing
[ "eruptions", "merging with background", "flames", "blending paint" ]
B
camouflage is used for hiding by animals against predators
medmcqa
medmcqa_05_02297
Stellate Granuloma are seen in
[ "Cat scratch disease", "Sarcoidosis", "LGV", "Histoplasmosis" ]
A
Ans. (a) Cat scratch disease(Ref: Robbins 9th/98)Cat-scratch disease causes rounded or stellate granuloma containing central granular debris and recognizable neutrophils; giant cells
medmcqa
medmcqa_05_03840
Most common tumour of pituitary' is -
[ "Prolactinoma", "GH secreting adenoma", "ACTH secreting adenoma", "TSH secreting adenoma" ]
A
Ans. is 'a' i.e., Prolactinoma Types of adenomasSecretionStainingPathology% of hormone production casesLacto trophicadenomas(prolactinomas)Secrete prolactinAcidophilicGalactorrhea, hypogonadism, amenorrhea, infertility, and impotence30%SomatotrophicadenomasSecrete growth hormone (GH)AcidophilicAcromegaly in adults; gig...
sciq
sciq_01_05777
What term means the amount of a substance required to form a saturated solution in a given amount of solvent at a specified temperature?
[ "solubility", "concentration", "turbidity", "viscosity" ]
A
The solubility of a substance is the amount of that substance that is required to form a saturated solution in a given amount of solvent at a specified temperature. Solubility is often measured as the grams of solute per 100 g of solvent. The solubility of sodium chloride in water is 36.0 g per 100 g water at 20°C. The...
openbookqa
obqa_02_04115
Certain species of which type of animal gives live birth?
[ "Lizards", "Snakes", "Birds", "Fish" ]
A
fish lay eggs
ARC-Challenge
arc_04_02737
In a comparison of metals to nonmetals, metals tend to have
[ "lower melting points and greater conductivity than nonmetals.", "lower conductivity and lower density than nonmetals.", "higher density and lower melting points than nonmetals.", "greater conductivity and higher melting points than nonmetals." ]
D
null
ARC-Challenge
arc_04_02336
Mrs. Gordon's class studies maple trees. Which property can the students measure with a meter stick?
[ "the mass of a leaf", "the volume of its sap", "the length of a branch", "the temperature of its bark" ]
C
null
sciq
sciq_01_01603
What gives the body shape and support?
[ "muscles", "skeleon", "gravity", "organs" ]
B
The skeleton supports the body and gives it shape. It has several other functions as well, including:.
sciq
sciq_01_03443
What do covalent bonds give atoms a more stable arrangement of?
[ "electrons", "protons", "cell walls", "neutrons" ]
A
Covalent bonds form because they give atoms a more stable arrangement of electrons. Look at the oxygen atoms in the Figure above . Alone, each oxygen atom has six valence electrons. By sharing two pairs of valence electrons, each oxygen atom has a total of eight valence electrons. This fills its outer energy level, giv...
openbookqa
obqa_02_04077
Large trees block sunlight from reaching what?
[ "moons", "outdoor floor", "clouds", "coffee grounds" ]
B
large trees block sunlight from reaching the ground
medmcqa
medmcqa_05_03674
Six penny bruise is seen in ?
[ "Manual strangulation", "Hanging", "Pedestrian injury", "Head injury" ]
A
Ans. is 'a' i.e., Manual strangulation Six penny bruiseThese are discoid shaped bruises of about 1 cm in diameter resulted from fingeip pressure usually seen in neck region because of manual strangulation. These are called six penny bruise because of resemblance with six penny.
sciq
sciq_01_08685
Through what method or methods of fertilization do amphibians sexually reproduce?
[ "spawning or budding", "asexual or sexual", "mitosis and meiosis", "external or internal" ]
D
Amphibians reproduce sexually with either external or internal fertilization. They may attract mates with calls or scents. They do not produce amniotic eggs, so they must reproduce in water. Their larvae go through metamorphosis to change into the adult form.
openbookqa
obqa_02_04235
What's usually hot in temperature?
[ "the Sahara", "Minnesota", "Alaska", "corpses" ]
A
a desert environment is usually hot in temperature
openbookqa
obqa_02_02381
A small dish that is in space will do this as it nears an enormous mass.
[ "be blown up", "be yanked in", "be pushed away", "be evaporated" ]
B
as distance from an object decreases , the the pull of gravity on that object increases
openbookqa
obqa_02_00845
There are several stages in the way that water cycles, and all are accurate aside from
[ "condensation", "procepitation", "precipitation", "evaporation" ]
B
condensation is a stage in the water cycle process
sciq
sciq_01_00824
What occurs when the presence or absence of a specific behavior prevents reproduction from taking place?
[ "behavioral isolation", "natural selection", "spontaneous mutation", "primary speciation" ]
A
Behavioral isolation occurs when the presence or absence of a specific behavior prevents reproduction from taking place. For example, male fireflies use specific light patterns to attract females. Various species of fireflies display their lights differently. If a male of one species tried to attract the female of anot...
sciq
sciq_01_11481
What type of mass movement is a sudden movement of large blocks of rock and soil down a slope?
[ "downturn", "slump", "deluge", "resurgence" ]
B
Two other types of mass movement are slump and creep. They usually aren’t as destructive as landslides and mudslides. Slump is the sudden movement of large blocks of rock and soil down a slope. Creep is the very slow movement of rock and soil down a slope. It causes trees, fence posts, and other structures to tilt down...
openbookqa
obqa_02_02200
A person needing to know if a ball is orange or turquoise can decide by sparing it a
[ "meal", "thought", "dollar", "peek" ]
D
the color of an object can be discovered by looking at that object
sciq
sciq_01_03290
What season is it in the southern hemisphere when it's winter in the northern?
[ "Winter", "autumn", "Spring", "summer" ]
D
Winter solstice for the Northern Hemisphere happens on December 21 or 22. The North Pole of Earth's axis points away from the Sun ( Figure below ). Light from the Sun is spread out over a larger area. With fewer daylight hours in winter, there is also less time for the Sun to warm the area. When it is winter in the Nor...
sciq
sciq_01_04726
Methanogens in their gut enable what process in cows?
[ "digestion", "regeneration", "excretion", "absorption" ]
A
Cows are able to digest grass with the help of the methanogens in their gut.
openbookqa
obqa_02_02003
Compost, small rocks, and organic material make up
[ "air", "stone", "land", "water" ]
C
a plant requires soil for to grow
openbookqa
obqa_02_02317
A person makes dresses and everyone in a location buys them. Once everyone has bought a dress, the dress sales
[ "boom", "grow", "cease", "increase" ]
C
as the sale of a product decreases , the amount of money made by the person selling that product will decrease
ARC-Easy
arc_04_00416
Fossil fuels are considered a nonrenewable resource because they
[ "have turned into solid rock.", "take a long period of time to form.", "are expensive to remove from rock.", "are located deep within the Earth's crust." ]
B
null
math_qa
mathqa_03_01108
the compound ratio of 1 : 2 , 3 : 2 and 4 : 5 ?
[ "1 : 9", "1 : 7", "1 : 2", "3 : 5" ]
D
"1 / 2 * 3 / 2 * 4 / 5 = 3 / 5 = 3 : 5 answer : d"
openbookqa
obqa_02_00630
The star that Jupiter revolves around is the source of solar energy called
[ "sunlight", "moonlight", "ultraviolet light", "fluorescent light" ]
A
the sun is the source of solar energy called sunlight
medmcqa
medmcqa_05_02304
A previously healthy 6 week old female infant is found unresponsive in her crib. In the emergency depament, she is noted to be well developed and well nourished with normal blood pressure and appearance of the genitalia but with increased pigmentation of her skin. Blood glucose level is 30 mg/dL. The most likely diagno...
[ "CAH due to 21 alpha hydroxylase deficiency", "Familial glucocoicoid deficiency", "Cushing syndrome", "Insulinoma" ]
B
Familial glucocoicoid deficiency Familial glucocoicoid deficiency is a rare autosomal recessive condition. It is characterized by adrenal insufficiency. The pathological examination of the adrenal gland reveals that:- This causes low coisol concentration because the zona fasciculata is primarily responsible for glucoco...
medmcqa
medmcqa_05_02904
Waters view is best used for visualization of:
[ "Frontal sinus", "Maxillary sinus", "Ethmoid sinus", "Sphenoid sinus" ]
B
Ref. Textbook of Ear, Nose and Throat Diseases Pg 155   Law’s view (15º lateral oblique): Sagittal plane of the skull is parallel to the film and X-ray beam is projected 15 degrees cephalocaudal Water view – Best to visualize maxillary sinus The Caldwell view is a caudally angled PA radiograph of the skull, designed t...
math_qa
mathqa_03_04841
the number 0.650 is how much greater than 1 / 8 ?
[ "½", "21 / 40", "1 / 50", "1 / 500" ]
B
"let x be the difference then . 65 - 1 / 8 = x 65 / 100 - 1 / 8 = x x = 21 / 40 ans b"
openbookqa
obqa_02_03190
Bringing a stray dog to live at your house when it lived outside all its life will be hard for it at first, but eventually, it will
[ "fly away", "start talking", "get acclimated", "tell jokes" ]
C
animals adapt to their environment
ARC-Challenge
arc_04_02429
Which best represents the use of mechanical energy?
[ "a light bulb giving off heat", "a candle providing light", "a nail being hammered", "a can rusting" ]
C
null
medmcqa
medmcqa_05_04588
The most reliable urine specimen is obtained by
[ "Urethral catheterization", "Catheter aspiration", "Midstream voiding", "Suprapubic aspiration" ]
D
the most reliabe urine sample is obtained through suprapubic aspiration .it is superior to clean catch or catheter specimen with sensitivity for bacteriuria being 100% and rarely contaminated.But this is not routinely indicated . A midstream sample is obtained for urine analysis in both males and females after cleaning...
sciq
sciq_01_04777
Bacterial dna is contained in a large, circular strand; this single chromosome is located in a region of the cell called what?
[ "amino acid", "nucleic acid", "the nucleoid", "polypeptide" ]
C
DNA. By contrast though, bacterial DNA is contained in a large, circular strand. This single chromosome is located in a region of the cell called the nucleoid . The nucleoid is not an organelle, but a region within the cytoplasm. Many bacteria also have additional small rings of DNA known as plasmids .
medmcqa
medmcqa_05_03775
The efferent limb of the corneal reflex Is -
[ "Accessory nerve", "Facial nerve", "Glossopharyngeal nerve", "Trigeminal nerve" ]
B
The corneal reflex, also known as the blink reflex, is an involuntary blinking of the eyelids elicited by stimulation of the cornea (such as by touching or by a foreign body) Corneal reflex-The reflex is mediated by: the nasociliary branch of the ophthalmic branch (V1) of the trigeminal nerve (CN V) sensing the stimulu...
openbookqa
obqa_02_04211
When the earth shades part of the moon at night it's called
[ "lunar orbit", "the phases", "weather", "bad luck" ]
B
the phases of the Moon change the appearance of the Moon
openbookqa
obqa_02_00404
What item is high in moisture?
[ "firewood", "light bulb", "wet dog", "a book" ]
C
moist means high in moisture
medmcqa
medmcqa_05_00797
Ralimar, a 30 year old male, sewage worker is brought to hospital with hempotysis and altered mental status. His relatives gives a history that he was suffering from fever, headache and severe myalgia for 5 days. On examination he was found to be severely jaundiced, had petechiae on oral and conjunctival mucosa. Lab in...
[ "Leptospira", "Plague", "Yersinia", "Rickettsial fever" ]
A
This patient is suffering from Wiel's disease caused by Leptospira. Weils syndrome (icteric leptospirosis) is the most severe form of leptospirosis. It is characterized by impaired kidney and liver function, abnormal mental status and hemorrhagic pneumonia and hypotension.
sciq
sciq_01_02252
Organs are groups of what working together?
[ "tendons", "bones", "muscles", "tissues" ]
D
math_qa
mathqa_03_04136
if each participant of a chess tournament plays exactly one game with each of the remaining participants , then 210 games will be played during the tournament . what is the number of participants ?
[ "18", "19", "20", "21" ]
D
"let n be the number of participants . the number of games is nc 2 = n * ( n - 1 ) / 2 = 210 n * ( n - 1 ) = 420 = 21 * 20 ( trial and error ) the answer is d ."
medmcqa
medmcqa_05_01460
Most variable absorption is seen with which route
[ "oral", "Intramuscular", "Intravenous", "Per rectal" ]
A
Ref-Goodman and gillman 12th/20 Oral route has maximum variability in absorption
ARC-Easy
arc_04_02026
Life is more likely to be found on a planet whose atmosphere contains abundant
[ "neon.", "oxygen.", "hydrogen.", "sulfur dioxide." ]
B
null
sciq
sciq_01_01530
What does the tires meeting the road cause when a car accelerates?
[ "erosion", "thrust", "vibration", "friction" ]
D
A bowling ball rolls down a lane at a constant velocity. (e) A car accelerates down the road. There is friction between the tires and the road.
medmcqa
medmcqa_05_01076
Which one of the following is not a CT feature of Adrenal adenoma ?
[ "Low attenuation", "Homogeneous density and well defined borders", "Enhances rapidly, contrast stays in it for relatively longer time and washes out late", "Calcification is rare" ]
C
Ref: internet CT is often the modality which identifies an adrenal mass. Founately using density is highly sensitive and specific as 70% of adrenal adenomas contain significant intracellular fat. Lipid-poor adenomas are more difficult to diagnose because the CT density increases and approach those of soft tissue. For l...
medmcqa
medmcqa_05_02700
Which of the following sensory receptor provides information about the force of contraction?
[ "Nuclear bag fibre", "Nuclear chain fibre", "Free nerve endings", "Golgi tendon organ" ]
D
Golgi tendon organ provides information about the force of contraction. It senses and regulates tension in muscle
medmcqa
medmcqa_05_04790
What is the best way to control external hemorrhage:
[ "Proximal tourniquet", "External compression", "Artery forceps", "Elevation" ]
B
Direct Pressure is the best method of controlling bleeding, where pressure is applied directly to the wound. This is done by placing cleanest gauze against the wound and applying firm pressure until a cover bandage is applied.Placing pressure on the wound will constrict the blood vessels manually, helping to stem any b...
sciq
sciq_01_10744
What do the planets orbit around in the solar system?
[ "the sun", "the moon", "the Milky Way", "the Earth" ]
A
In the solar system, the planets orbit around the Sun. The Sun and each of the planets of our solar system are round. Earth is the third planet from the Sun. It is one of the inner planets. Jupiter is an outer planet. It is the largest planet in the solar system at about 1,000 times the size of Earth. The Sun is about ...
sciq
sciq_01_11069
What is formed when the ceiling of an underground cave collapses?
[ "hill", "sinkhole", "groundwater", "mountain" ]
B
As erosion by groundwater continues, the ceiling of a cave may collapse. The rock and soil above it sink into the ground. This forms a sinkhole on the surface. You can see an example of a sinkhole in Figure below . Some sinkholes are big enough to swallow vehicles and buildings.
math_qa
mathqa_03_01319
simplify : 0.3 * 0.8 + 0.1 * 0.5
[ "0.52", "0.29", "0.48", "0.64" ]
B
"given exp . = 0.3 * 0.8 + ( 0.1 * 0.5 ) = 0.24 + 0.05 = 0.29 answer is b ."
math_qa
mathqa_03_01202
65 % of x = 20 % of 422.50 . find the value of x ?
[ "100", "130", "150", "180" ]
B
"65 % of x = 20 % of 422.50 then , 65 / 100 * x = 20 / 100 * 4225 / 10 x = 845 / 10 * 100 / 65 = 130 answer is b"
openbookqa
obqa_02_03636
What cells can perform photosynthesis?
[ "animals", "inorganic minerals", "flora", "critters" ]
C
plant cells can perform photosynthesis
sciq
sciq_01_10888
What sorts of collisions do not result in an overall loss of kinetic energy?
[ "soft", "powerful", "elastic", "static" ]
C
Collisions between gas particles and between particles and the container walls are elastic collisions . An elastic collision is one in which there is no overall loss of kinetic energy. Kinetic energy may be transferred from one particle to another during an elastic collision, but there is no change in the total energy ...
medmcqa
medmcqa_05_00447
What is a giant hiatal hernia ?
[ "Bochdalek hernia", "Sliding hernia", "Paraesophageal hernia", "Sliding hernia" ]
C
According to Harrison's 18th ed Types II, III, and IV hiatal hernias are all subtypes of paraesophageal hernia in which the herniation into the mediastinum includes a visceral structure other than the gastric cardia. In type II the gastro esophageal junction remains fixed. With type IV hiatal hernias, viscera other tha...
sciq
sciq_01_04841
Water dissolving minerals out of rocks makes ocean water what?
[ "muddy", "bitter", "salty", "sweet" ]
C
Ocean water is salty because water dissolves minerals out of rocks. This happens whenever water flows over or through rocks. Much of this water and its minerals flow in rivers that end up in the oceans. Minerals dissolved in water form salts. When the water evaporates, it leaves the salts behind. As a result, ocean wat...
sciq
sciq_01_00959
In a model of a hemoglobin molecule, the purple part indicates the presence of what element?
[ "iron", "gold", "silver", "helium" ]
A
Hemoglobin Molecule. This model represents the protein hemoglobin. The purple part of the molecule contains iron. The iron binds with oxygen molecules.
medmcqa
medmcqa_05_02246
Delayed pubey is when primary amenorrhea is seen without development of secondary sexual characters beyond the age of?
[ "12 years", "14 years", "16 years", "18 years" ]
C
Delayed pubey: Girls: Absence of secondary sexual characters by 13 yrs of age / Absence of menarche by 16 years of age / within 5 yrs of onset of pubey Boys: Lack of pubeal changes by 14 yrs of age
sciq
sciq_01_07904
The planet neptune has strange dark spots that sometimes appear on its surface? what are these spots?
[ "earthquakes", "storms", "seas", "black holes" ]
B
Neptune is very cold and has very strong winds. It had a large dark spot that disappeared. Another dark spot appeared on another part of the planet. These dark spots are storms in Neptune’s atmosphere.
openbookqa
obqa_02_02375
Which of the following would be excluded from a list of ecosystems?
[ "desert", "snow", "rain forest", "tundra" ]
B
the Earth contains many ecosystems
sciq
sciq_01_00688
Knees and elbows are examples of what part of the skeletal system?
[ "nerves", "cartilage", "muscles", "joints" ]
D
As you age, you might start noticing pain in your knees or elbows. These are examples of joints. Joints are the part of the skeletal system that connect your bones. Joint pain is a common problem as people age.
sciq
sciq_01_02944
How many stomach compartments do ruminants have?
[ "four", "five", "seven", "two" ]
A
To help digest the large amount of plant material, the stomach of the ruminants is a multi-chambered organ, as illustrated in Figure 34.8. The four compartments of the stomach are called the rumen, reticulum, omasum, and abomasum. These chambers contain many microbes that break down cellulose and ferment ingested food....
sciq
sciq_01_07838
Researchers have identified the receptor proteins for all of the tastes except which?
[ "acid", "salty", "bitter", "sweet" ]
B
math_qa
mathqa_03_00446
find the cost of fencing around a circular field of diameter 40 m at the rate of rs . 3 a meter ?
[ "400", "370.4", "376.98", "340.9" ]
C
"2 * 22 / 7 * 20 = 125.66 125.66 * 3 = rs . 376.98 answer : c"
openbookqa
obqa_02_01626
An example of migration would be
[ "robins flying from Minneapolis to Miami", "geese flying to a park to bother the people there", "bison that belong to a farmer being moved to a different pasture", "mice running from a fox" ]
A
migration is when animals move themselves from a cooler climate to a warmer climate for the winter
sciq
sciq_01_06151
Kirchhoff’s second rule (the loop rule) is an application of conservation of what?
[ "heating", "mineral", "energy", "Rock" ]
C
Kirchhoff’s Second Rule Kirchhoff’s second rule (the loop rule) is an application of conservation of energy. The loop rule is stated in terms of potential, V , rather than potential energy, but the two are related since PE elec = qV . Recall that emf is the potential difference of a source when no current is flowing. I...
medmcqa
medmcqa_05_03494
If cellular proteins do not fold into a specific conformation, their function are affected. Ceain disorders arise, if specific proteins are misfolded. Which of the following disorders arises due to conformational isomerization:
[ "Familial fatal insomnia", "Hepatitis delta", "Pernicious anemia", "Lesch-Nyhan syndrome" ]
A
A i.e Familial fatal insomnia
sciq
sciq_01_04103
Radiation can be absorbed or shielded by materials, particularly what material used to make protective aprons worn by x-ray administrators?
[ "cotton", "lead", "steel", "carbon" ]
B
Radiation can be absorbed or shielded by materials, such as the lead aprons dentists drape on us when taking x rays. Lead is a particularly effective shield compared with other materials, such as plastic or air. How does the range of radiation depend on material? Ionizing radiation interacts best with charged particles...
sciq
sciq_01_08119
Like the mitochondria, chloroplasts have their own dna and ribosomes, but chloroplasts have an entirely different function. chloroplasts are plant cell organelles that carry out what?
[ "digestion", "photosynthesis", "reproduction", "growth" ]
B
Chloroplasts Like the mitochondria, chloroplasts have their own DNA and ribosomes, but chloroplasts have an entirely different function. Chloroplasts are plant cell organelles that carry out photosynthesis. Photosynthesis is the series of reactions that use carbon dioxide, water, and light energy to make glucose and ox...
math_qa
mathqa_03_03925
truck x is 14 miles ahead of truck y , which is traveling the same direction along the same route as truck x . if truck x is traveling at an average speed of 57 miles per hour and truck y is traveling at an average speed of 63 miles per hour , how long will it take truck y to overtake and drive 4 miles ahead of truck x...
[ "5 hours", "3 hours 20 minutes", "3 hours", "2 hours 45 minutes" ]
C
"relative speed = 63 - 57 = 6 miles per hour dist required = 14 + 4 = 18 miles time taken to overtake = 18 / 6 = 3 hours . c is the answer ."
ARC-Easy
arc_04_01280
In order to grow two of the exact same plants, a person would reproduce them asexually because the
[ "genetic diversity is greater.", "offspring would be genetically identical.", "recessive traits would emerge.", "negative traits are suppressed." ]
B
null
sciq
sciq_01_04222
What type of tissue covers the outside of a plant?
[ "porous", "anterior", "dermal", "epidermal" ]
C
Dermal tissue covers the outside of a plant in a single layer of cells called the epidermis. It mediates most of the interactions between a plant and its environment.
math_qa
mathqa_03_00054
a certain company that sells only cars and trucks reported that revenues from car sales in 1997 were down 11 percent from 1996 and revenues from truck sales were up 7 percent from 1996 . if total revenues from car sales and truck sales in 1997 were up 1 percent from 1996 , what is the ratio t of revenue from car sales ...
[ "1 : 2", "4 : 5", "1 : 1", "3 : 2" ]
A
a . . i have probably solved this question 3 - 4 times by now . . remember the answer . . 1 : 2
math_qa
mathqa_03_00007
in what time will a train 100 m long cross an electric pole , it its speed be 126 km / hr ?
[ "2.5", "2.9", "2.4", "2.85" ]
D
"speed = 126 * 5 / 18 = 35 m / sec time taken = 100 / 35 = 2.85 sec . answer : d"
math_qa
mathqa_03_03650
4 weavers can weave 4 mats in 4 days . at the same rate , how many mats would be woven by 10 weavers in 10 days ?
[ "10", "15", "20", "25" ]
D
"1 weaver can weave 1 mat in 4 days . 10 weavers can weave 10 mats in 4 days . 10 weavers can weave 25 mats in 10 days . the answer is d ."
math_qa
mathqa_03_03648
a contractor is engaged for 30 days on the condition thathe receives rs . 25 for each day he works & is fined rs . 7.50 for each day is absent . he gets rs . 555 in all . for how many days was he absent ?
[ "8", "10", "15", "6" ]
D
"30 * 25 = 750 455 - - - - - - - - - - - 195 25 + 7.50 = 32.5 195 / 32.5 = 6 d"
sciq
sciq_01_00561
Certain medications can suppress the immune system. this is an intended effect of drugs given to people with what?
[ "infections", "transplanted organs", "benign tumors", "genetic disorders" ]
B
Certain medications can suppress the immune system. This is an intended effect of drugs given to people with transplanted organs. In many cases, however, it is an unwanted side effect of drugs used to treat other diseases.
sciq
sciq_01_11024
Earthquakes at convergent plate boundaries mark the location of the what?
[ "abducting lithosphere", "shorting lithosphere", "subducting lithosphere", "speeding lithosphere" ]
C
Earthquakes at convergent plate boundaries mark the location of the subducting lithosphere. The motion of the lithosphere as it plunges through the mantle causes the quakes ( Figure below ). At greater depths, the plate heats up enough to deform plastically.
sciq
sciq_01_10293
Ethylene, gibberellins, cytokinins, absciscic acid, and auxins are examples of what?
[ "animal proteins", "insect hormones", "animal hormones", "plant hormones" ]
D
Plant hormones include ethylene, gibberellins, cytokinins, absciscic acid, and auxins.
ARC-Challenge
arc_04_02310
Which of these determines whether a fertilized egg develops into a toad, a snake, or a lizard?
[ "the sex of the egg", "the age of the egg", "the size of the egg", "the genes of the egg" ]
D
null
openbookqa
obqa_02_01193
The back and forth on daily routine in the sky happens how often?
[ "one time during the single rotation", "one cycle of the sun", "during the winter solstice", "springtime when the moon is at apex" ]
A
cycles of day and night occur once per day
openbookqa
obqa_02_01897
What does a frog eat?
[ "plantlife", "bug microphones", "mayflies", "minerals" ]
C
a frog eats insects
sciq
sciq_01_02494
Through what form of energy transfer does the sun's energy travel?
[ "solar burst", "radiation", "Fusion", "convection" ]
B
Radiation is the transfer of energy by waves. Energy can travel as waves through air or empty space. The Sun's energy travels through space by radiation. After sunlight heats the planet's surface, some heat radiates back into the atmosphere.
math_qa
mathqa_03_00887
mona and donald fly to rome for the weekend . they take cash only in notes of $ 10 and notes of € 10 . mona carries 3 times the amount of euros donald carries . she also carries as many dollars as donald carries . the number of € 10 notes they take is double the number of $ 10 notes they take . if donald carries a tota...
[ "130", "80", "100", "120" ]
A
let e 10 = x no . d 10 = y no . donald is having x + y notes mona carries 3 x + y again x = 2 y or donald x + y = 39 or 3 y = 39 y = 13 ; x = 26 , total notes they carry = 104 + 26 = 130 a
sciq
sciq_01_10654
What is the term for crops that are genetically modified with new genes that code for traits useful to humans?
[ "mutant", "embryonic", "carcinogenic", "transgenic" ]
D
Biotechnology has been used to create transgenic crops. Transgenic crops are genetically modified with new genes that code for traits useful to humans. The diagram in Figure below shows how a transgenic crop is created. You can learn more about how scientists create transgenic crops with the interactive animation "Engi...
ARC-Easy
arc_04_02097
What may form as a direct result of a star collapsing?
[ "constellation", "galaxy", "protostar", "supernova" ]
D
null
openbookqa
obqa_02_00973
An animal usually weighs the most if it has eaten
[ "a salad plate of food", "a truck full of food", "a dinner plate of food", "a barrel of food" ]
B
as the amount of food an animal eats increases , the weight of that animal will increase
sciq
sciq_01_10473
What kind of energy used heat from magma within the earth to heat homes or produce steam that turns turbines?
[ "robust energy", "geothermal energy", "thermal energy", "renewable energy" ]
B
Geothermal energy uses heat from magma within the Earth to heat homes or produce steam that turns turbines.
ARC-Easy
arc_04_01151
The burning of fossil fuels has added pollutants that contain sulfur atoms to the air. These pollutants have contributed to which of the following?
[ "drought", "acid rain", "tornadoes", "temperature inversions" ]
B
null
sciq
sciq_01_00197
What is a suggested explanation for a phenomenon or a suggested explanation for a relationship between many phenomena called?
[ "system", "hypothesis", "process", "query" ]
B
In order to explain the observed phenomenon, scientists develop a number of possible explanations, or hypotheses. A hypothesis is a suggested explanation for a phenomenon or a suggested explanation for a relationship between many phenomena. Hypotheses are always based on evidence that can be tested by observation or ex...
medmcqa
medmcqa_05_03867
Oniomania is a disorder of compulsive:
[ "Stealing", "Gambling", "Buying", "Hair pulling" ]
C
Oniomania is a compulsive disorder that drives people to buy in a repetitive and uncontrolled manner regardless of consequences. Oniomania is an example of a reactive impulse or impulsive insanity. Although DSM IV-TR does not mention CBD, the disorder can be placed in the category 'impulse control disorder not otherwis...
openbookqa
obqa_02_03758
One way to remember the method of Scientific Classification is
[ "run", "dive", "swim", "make a sentence" ]
D
classifying means grouping materials by their properties
sciq
sciq_01_08527
Arteries and veins are two of the three types of blood vessels, what is the third?
[ "fibroids", "muscles", "capillaries", "neurons" ]
C
Blood vessels are long, tube-like organs that form a complex network throughout the body. They transport blood to all the body’s cells. There are three types of blood vessels: arteries, veins, and capillaries. Transfer of substances between the blood and cells takes place across the thin walls of capillaries.
sciq
sciq_01_07242
What are the two components of the ecf?
[ "plasma and if", "polymer and if", "proteins and if", "solids and if" ]
A
Composition of Body Fluids The compositions of the two components of the ECF—plasma and IF—are more similar to each other than either is to the ICF (Figure 26.5). Blood plasma has high concentrations of sodium, chloride, bicarbonate, and protein. The IF has high concentrations of sodium, chloride, and bicarbonate, but ...
math_qa
mathqa_03_04885
a reduction of 46 % in the price of bananas would enable a man to obtain 64 more for rs . 40 , what is reduced price per dozen ?
[ "2.45", "8.45", "7.45", "3.45" ]
D
"explanation : 40 * ( 46 / 100 ) = 18.4 - - - 64 ? - - - 12 = > rs . 3.45 answer : d"
sciq
sciq_01_00380
The heart and a network of blood vessels that run throughout the body make up what organ system?
[ "lymphatic system", "immune system", "respiratory system", "cardiovascular system" ]
D
The organs that make up the cardiovascular system are the heart and a network of blood vessels that run throughout the body. The blood in the cardiovascular system is a liquid connective tissue. Figure below shows the heart and major vessels through which blood flows in the system. The heart is basically a pump that ke...