dataset
stringclasses
6 values
id
stringlengths
12
16
question
stringlengths
1
935
choices
listlengths
4
4
answer
stringclasses
4 values
support
stringlengths
0
7.76k
math_qa
mathqa_03_00666
find the area of trapezium whose parallel sides are 20 cm and 18 cm long , and the distance between them is 17 cm
[ "178 cm 2", "323 cm 2", "285 cm 2", "167 cm 2" ]
B
"area of a trapezium = 1 / 2 ( sum of parallel sides ) * ( perpendicular distance between them ) = 1 / 2 ( 20 + 18 ) * ( 17 ) = 323 cm 2 answer : b"
sciq
sciq_01_09694
In living systems, diffusion of substances into and out of cells is mediated by the what membrane?
[ "plasma", "ferment", "fluid", "gas" ]
A
affect the rate of diffusion, including concentration gradient, size of the particles that are diffusing, temperature of the system, and so on. In living systems, diffusion of substances into and out of cells is mediated by the plasma membrane. Some materials diffuse readily through the membrane, but others are hindere...
sciq
sciq_01_08793
What is the separation of compounds on the basis of their solubilities in a given solvent?
[ "fractional mass", "volatile crystallization", "fractional crystallization", "solvent law" ]
C
temperature. In fact, the magnitudes of the changes in both enthalpy and entropy for dissolution are temperature dependent. Because the solubility of a compound is ultimately determined by relatively small differences between large numbers, there is generally no good way to predict how the solubility will vary with tem...
medmcqa
medmcqa_05_03437
Coris disease is due to defect in
[ "Branching enzyme", "Debranching enzyme", "Myophosphorylase", "Hepatic phosphorylase" ]
B
It is type III glycogen storage disease. to deficiency of the debranching enzyme. Clinical features: highly branched dextrin accumulate, fasting hypoglycemia, hepatomegaly.Ref: DM Vasudevan, 7th edition, page no: 125
sciq
sciq_01_00674
Kinetic and potential are two forms of what?
[ "exercise", "pressure", "fuel", "energy" ]
D
Energy is the ability to do work. When work is done, energy is transferred from one object to another. Energy can exist in different forms, such as electrical and chemical energy. Most forms of energy can also be classified as kinetic or potential energy.
openbookqa
obqa_02_03113
If a deer eats a berry plant, the plant eats
[ "a berry juice slurry", "large slices of meat", "its self created nutriment", "small bugs that glow" ]
C
green plants provide food for consumers by performing photosynthesis
medmcqa
medmcqa_05_03209
McFadyean reaction is seen in:
[ "Yersinia pestis", "Clostridium perfringens", "Bacillus anthrax", "Staphylococcus aureus" ]
C
Ref: Harrisons 19th ed. pg. 261e2 \* McFadyean reaction is a special staining reaction, demonstrating a pink capsule around a blue cell, after staining with methylene blue, which is used as a presumptive diagnosis for anthrax in a blood smear.* Anthrax is caused by B. anthracis a Gram-positive, nonmotile, spore-forming...
medmcqa
medmcqa_05_01861
Bone marrow in lead poisoning contains?
[ "Ringed siderocytes", "Giant metamyelocytes", "Dwarf megakaryocytes", "Fibrotic changes" ]
A
Ans. (a) Ringed siderocytes(Ref: Wintrobe's 12th/pg 848)Bone marrow in lead poisoning contains Ringed siderocytes.Hematologic findings in Lead poisoning include:Anisocytosis with microcytic Hypochromic AnemiaBasophilic stipplingRinged sideroblasts in bone marrow may be seen
sciq
sciq_01_00559
What type of vascular plants produce seeds in cones?
[ "angiosperms", "gymnosperms", "lipids", "Proteins" ]
B
Gymnosperms are vascular plants that produce seeds in cones . Examples include conifers such as pine and spruce trees. The gymnosperm life cycle has a dominant sporophyte generation. Both gametophytes and the next generation’s new sporophytes develop on the sporophyte parent plant. Figure below is a diagram of a gymnos...
ARC-Easy
arc_04_00951
Where is most of Earth's water located?
[ "glaciers", "lakes", "oceans", "rivers" ]
C
null
sciq
sciq_01_09878
What destroys the filtered pathogens?
[ "parasites", "lymphocytes", "neutrophils", "antibodies" ]
B
Lymphatic vessels make up a body-wide circulatory system. The fluid they circulate is lymph. Lymph is a fluid that leaks out of capillaries into spaces between cells. As the lymph accumulates between cells, it diffuses into tiny lymphatic vessels. The lymph then moves through the lymphatic system from smaller to larger...
ARC-Easy
arc_04_00513
What is the composition of the nucleus of an atom?
[ "ions and electrons", "electrons and protons", "protons and neutrons", "neutrons and electrons" ]
C
null
medmcqa
medmcqa_05_03660
Hepatitis B vaccine in adults should be given as:
[ "0,1,2 months", "0,1,6 months", "0,1,2 years", "0,1,6 years" ]
B
Hepatitis B vaccine schedule for adults: 0,1,6 months. (dose: 1 ml each) Hepatitis B vaccine schedule for infants (NIS, India): 6,10,14 weeks or 0,6,14 weeks. (Dose: 0.5 ml each)
openbookqa
obqa_02_01487
Flora requires chlorophyll to
[ "moonlight", "undergo natural development", "starlight", "dairy" ]
B
a plant requires photosynthesis to grow
sciq
sciq_01_11052
Salts of weak acids or bases can affect the acidity or what of their aqueous solution?
[ "compound", "basicity", "ductility", "atomicity" ]
B
Salts of weak acids or bases can affect the acidity or basicity of their aqueous solutions.
ARC-Challenge
arc_04_02658
Many fertilizers contain organic materials that are helpful to an orchard but have a different effect when rain causes them to run off into a freshwater ecosystem. How does the addition of organic waste from fertilizers most commonly affect freshwater ecosystems?
[ "increasing biodiversity", "increasing water clarity", "decreasing algae blooms", "decreasing oxygen levels" ]
D
null
sciq
sciq_01_10113
What occurs when the immune system attacks harmless substances that enter the body from the outside?
[ "cell rejection", "allergies", "mutation", "anomalies" ]
B
Allergies occur when the immune system attacks harmless substances that enter the body from the outside.
sciq
sciq_01_05190
What controls every aspect of plant growth and development to some degree?
[ "chlorophyll", "pesticides", "acids", "hormones" ]
D
sciq
sciq_01_09536
Where does most of the earth's energy come from?
[ "sun", "its core", "its atmosphere", "magnetic field" ]
A
Give an example of how matter cycles. While matter cycles round and round in the Earth System, ENERGY FLOWS through the Earth System. The vast majority of Earth’s energy comes from the sun, flows into the Earth’s System, and flows out of the Earth’s System into space. If all the energy that comes to Earth from the sun ...
openbookqa
obqa_02_00256
The bear in the wild needs to find other animals to feast.
[ "they never kill", "they only eat", "they are docile", "they are killers" ]
D
carnivores are predators
sciq
sciq_01_01799
Birds that move pollen from flower to flower are called what?
[ "pollinators", "frogs", "spores", "carnivores" ]
A
Nectar-feeding birds are important pollinators , meaning they move the pollen from flower to flower to help fertilize the sex cells and create new plants. Hummingbirds, sunbirds, and the honey-eaters are common pollinators.
math_qa
mathqa_03_03482
the compound interest on $ 27,000 at 11 % p . a is $ 11,000 . find out the period ( in years ) ?
[ "2.5", "3 1 / 4", "3", "2 3 / 4" ]
B
"amount = 27,000 + 11,000 = 38,000 . . . . . . . . . now by using compound interest formula we get , 27,000 * ( 111 / 100 ) ^ n = 38000 = = = = > n = = 3 1 / 4 years ans - b"
math_qa
mathqa_03_03889
the average weight of 20 persons sitting in a boat had some value . a new person added to them whose weight was 47 kg only . due to his arrival , the average weight of all the persons decreased by 5 kg . find the average weight of first 20 persons ?
[ "55", "56", "57", "58" ]
D
"20 x + 47 = 21 ( x – 5 ) x = 58 answer : d"
sciq
sciq_01_06850
Change in momentum in an object is equivalent to what other measurement?
[ "velocity", "gravity", "resistance", "impulse" ]
D
The change of momentum of an object is equal to the impulse.
sciq
sciq_01_01264
Worldwide, viruses seem to play a role in what percentage of the cases of human cancer?
[ "20 %", "15%", "+.15 %", "5%" ]
B
openbookqa
obqa_02_02493
A person is wondering how much the steam from the pot of water that is boiling will measure. They are able to measure it in a definite way by
[ "making the liquid condense outdoors", "remembering how big steam clouds are", "burning the hot steam", "collecting the condensed liquid" ]
D
Matter in the liquid phase has definite volume
medmcqa
medmcqa_05_02084
Hearing defect in menier's disease:
[ "Hyperacusis", "Hypoacusis", "Diplacusis", "Paracusia Willis" ]
C
Ans. (c) DiplacusisRefi PL Dhingra ,5thed.pg no: 112WHY DIPLACUSIS?* In the abnormal ear, neurons respond to a broader range of stimulus frequencies. But due to CNS preconditioning, the brain interprets any activity in a particular neuron as resulting from a stimulus of its normal characteristic frequency. Thus a singl...
openbookqa
obqa_02_04279
Pesticides are used on a lot of crops, so it is best to wash them before consumption in order to avoid
[ "nothing", "falling ill", "flying", "Floating" ]
B
eating food that contains pesticides can have a negative impact on humans
sciq
sciq_01_01142
What kind of core does mercury have?
[ "solid metal", "dense metal", "gas", "liquid metal" ]
D
Mercury is extremely hot and has a liquid metal core.
medmcqa
medmcqa_05_00655
Best assessment of protein quality is done through:
[ "Net protein utilization", "Protein biological value", "Digestibility coefficient", "Protein energy ratio" ]
A
Ref: Park s Textbook of Preventive and Social Medicine, 22nd edition. Page 588Explanation:Protein Energy Ratio (PER)It assesses the quantity of protein rather than quality.Its percentage of energy provided by protein in diet.PER = Energy from Protein/Total Energy in DietNet Protein Utilization (NPU)The best measure as ...
sciq
sciq_01_05027
What is the force that pulls downward on an object and is measured by weight?
[ "work", "light", "gravity", "strength" ]
C
Weight measures the force of gravity pulling downward on an object. The SI unit for weight, like other forces, is the Newton (N). On Earth, a mass of 1 kilogram has a weight of about 10 Newtons because of the pull of Earth’s gravity. On the moon, which has less gravity, the same mass would weigh less. Weight is measure...
sciq
sciq_01_02965
In the forward reaction, hydrogen and iodine combine to form what?
[ "iodinic hydrogen", "ionic hydrogen", "hydrogen iodide", "hydrogen ionicide" ]
C
In the forward reaction, hydrogen and iodine combine to form hydrogen iodide. In the reverse reaction, hydrogen iodide decomposes back into hydrogen and iodine. The two reactions can be combined into one equation by the use of a double arrow.
medmcqa
medmcqa_05_02173
Increased Calcium with Decreased Phosphate levels are seen in:
[ "Primary hyperparathyroidism", "Secondary hyperparathyroidism due to Vitamin D deficiency", "Malignancy with lytic bone lesions", "Osteoporosis" ]
A
Answer is A (Primary Hyperparathyroidism): Serum Calcium with Decreased Serum Phosphate levels are typical of Primary Hyperparathyroidism
sciq
sciq_01_05002
What is the hollow and muscular balloon-shaped organ that collects urine?
[ "urethra", "kidney", "prostate", "urinary bladder" ]
D
The urinary bladder is a hollow and muscular organ. It is shaped a little like a balloon. It is the organ that collects urine.
sciq
sciq_01_08500
Because plants are relatively immobile, they can function with bulky energy storage in the form of what?
[ "starch", "dioxide", "protein", "fat" ]
A
sciq
sciq_01_01227
What do you call a lens that causes the light rays to bend away from its axis?
[ "diverging lens", "converging lens", "optical lens", "axilens" ]
A
• A lens that causes the light rays to bend away from its axis is called a diverging lens. • Ray tracing is the technique of graphically determining the paths that light rays take. • The image in which light rays from one point on the object actually cross at the location of the image and can be projected onto a screen...
ARC-Challenge
arc_04_02634
Why are different stars seen during different seasons?
[ "Some stars shine brighter during different seasons.", "The Sun shines on different stars during different seasons.", "Earth changes position in its orbit during different seasons.", "The Moon changes position in its orbit during different seasons." ]
C
null
math_qa
mathqa_03_03731
in a renowned city , the average birth rate is 7 people every two seconds and the death rate is 2 people every two seconds . estimate the size of the population net increase that occurs in one day .
[ "215,000", "216,000", "217,000", "218,000" ]
B
this question can be modified so that the birth rate is given every m seconds and the death rate is given every n seconds . for this particular question : increase in the population every 2 seconds = 7 - 2 = 5 people . total 2 second interval in a day = 24 * 60 * 60 / 2 = 43,200 population increase = 43,200 * 5 = 216,0...
math_qa
mathqa_03_03495
speed of a boat in standing water is 9 kmph and the speed of the stream is 1.5 kmph . a man rows to a place at a distance of 105 km and comes back to the starting point . the total time taken by him is :
[ "16 hours", "18 hours", "20 hours", "24 hours" ]
D
"speed of upstream = 9 - 1.5 = 7.5 kmph speed of down stream = 9 + 1.5 = 10.5 kmph total time = ( 105 / 7.5 ) + ( 105 / 10.5 ) = 24 hrs answer : d"
medmcqa
medmcqa_05_00360
Which of the following ion plays a role in exocytosis?
[ "Sodium", "Potassium", "Calcium", "Magnesium" ]
C
Ans. C CalciumRef: Ganong 25th edition, P 46* Exocytosis is a calcium dependent process where vesicles containing material for export are targeted to the cell membrane.* This area of fusion then breaks down leaving the contents of vesicle outside the cell membrane intact.* The reverse of exocytosis is called as endocyt...
sciq
sciq_01_06069
How many set of chromosomes do moss have?
[ "double set", "triple set", "single set", "none" ]
C
That may depend on the plant. Start with moss. The typical nonvascular plant. But such a simple plant has a very interesting life cycle. Whereas most kinds of plants have two sets of chromosomes in their vegetative cells, mosses have only a single set of chromosomes. So, how does meiosis occur?.
math_qa
mathqa_03_01653
( 0.8 ) ( power 3 ) - ( 0.5 ) ( power 3 ) / ( 0.8 ) ( power 2 ) + 0.40 + ( 0.5 ) ( power 2 ) is :
[ "0.6", "0.5", "0.35", "0.3" ]
D
"given expression = ( 0.8 ) ( power 3 ) - ( 0.5 ) ( power 3 ) / ( 0.8 ) ( power 2 ) + ( 0.8 x 0.5 ) + ( 0.5 ) ( power 2 ) = a ( power 3 ) - b ( power 3 ) / a ( power 2 ) + ab + b ( power 2 ) = ( a - b ) = ( 0.8 - 0.5 ) = 0.30 answer is d ."
ARC-Easy
arc_04_02099
Some materials are electrical conductors. Which material best conducts electricity?
[ "copper", "plastic", "rubber", "wood" ]
A
null
medmcqa
medmcqa_05_02418
Which of the following has a single ossification centre only?
[ "Clavicle", "Carpals", "Metacarpals", "Metatarsals" ]
B
Carpals have only one ossification centre while about 3 centers are present for clavicle BD CHAURASIA HUMAN ANATOMY Vol 1
openbookqa
obqa_02_04748
If a rock is sedimentary then
[ "sediment was fused with lava", "sediment was packed into tummies", "sediment was watered with salt", "sediment was packed tightly" ]
D
sedimentary rocks are formed from sediment compacting together
openbookqa
obqa_02_00289
A remote device may be powered by
[ "a burning flame", "a gusting breeze", "a running sheep", "a small explosion" ]
B
wind is used for producing electricity
sciq
sciq_01_04130
What is the main cause of outdoor air pollution?
[ "chimneys", "methane from livestock", "aerosol spray", "burning of fossil fuels" ]
D
The main cause of outdoor air pollution is the burning of fossil fuels. Outdoor air pollution causes human health problems, acid rain, and global climate change.
math_qa
mathqa_03_00238
if x / y = 9 / 8 , then ( 8 x + 7 y ) / ( 8 x â € “ 7 y ) = ?
[ "8", "7", "10", "9" ]
A
"answer dividing numerator as well as denominator by y , we get given exp . = ( 8 x + 7 y ) / ( 8 x â € “ 7 y ) = ( 8 x / y + 7 ) / ( 8 x / y â € “ 7 ) since x / y = 9 / 8 this implies that = [ ( 8 * 9 ) / 8 + 7 ] / [ ( 8 * 9 ) / 8 - 7 ) ] = ( 9 + 7 ) / ( 9 - 7 ) = 8 option : a"
sciq
sciq_01_09509
The body does not exist in isolation. there is a constant input of water and electrolytes into the system. while osmoregulation is achieved across membranes within the body, excess electrolytes and wastes are transported to the kidneys and excreted, helping to maintain this?
[ "nucleic balance", "physical balance", "osmotic balance", "vacuum balance" ]
C
The body does not exist in isolation. There is a constant input of water and electrolytes into the system. While osmoregulation is achieved across membranes within the body, excess electrolytes and wastes are transported to the kidneys and excreted, helping to maintain osmotic balance.
medmcqa
medmcqa_05_03423
Kidney produces
[ "Vasopressin", "Erythropoietin", "Aldosterone", "Angiotensinogen" ]
B
In adults, about 85% of the erythropoietin comes from the kidneys and 15% from the liver.In most mammals, the hormones secreted by the posterior pituitary gland are arginine vasopressin (AVP) and oxytocin. Aldosterone is synthesized by adrenal coex.Circulating angiotensinogen is found in the a2-globulin fraction of the...
math_qa
mathqa_03_01145
a cistern is filled by pipe a in 10 hours and the full cistern can be leaked out by an exhaust pipe b in 15 hours . if both the pipes are opened , in what time the cistern is full ?
[ "50 hrs", "30 hrs", "70 hrs", "80 hrs" ]
B
"time taken to full the cistern = ( 1 / 10 - 1 / 15 ) hrs = 1 / 30 = 30 hrs answer : b"
sciq
sciq_01_06469
What is secreted before ejaculation to neutralize acidic urine remaining in the urethra?
[ "clear mucus", "pre-cum", "semen", "sperm" ]
A
ARC-Easy
arc_04_01236
A lunar eclipse occurs when the Moon passes through Earth's shadow. A lunar eclipse can only occur during a
[ "full moon.", "new moon.", "first quarter moon.", "last quarter moon." ]
A
null
sciq
sciq_01_08916
In celsius, what is the temperature at which water freezes?
[ "100 degrees", "zero degrees", "32 degrees", "absolute zero" ]
B
A: If calcium chloride dissolves in water, it breaks down into its ions (Ca 2+ and Cl - ). When water has ions dissolved in it, it has a lower freezing point. Pure water freezes at 0°C. With calcium and chloride ions dissolved in it, it won’t freeze unless the temperature reaches -29°C or lower.
medmcqa
medmcqa_05_04544
Which can cause profound hyperlipidemia?
[ "Hypoparathyroidism", "Hypothyroidism", "Hyperparathyroidism", "Hypehyroidism" ]
B
Answer is B (Hypothroidism): The two most common Endocrine causes of Secondary Dyslipidemia are Type-2 Diabetes Mellitus and Hypothyroidism. Type-2 Diabetes Mellitus is the single most common endocrine cause of Secondary Dyslipidemia followed by Hypothyroidism.
medmcqa
medmcqa_05_04382
A 25 year old patient presents in coma with GCS of 5 and extensor posturing after a bike accident. Which of the following will the best management of the patient?
[ "Hypertonic saline", "Thrombolysis", "Burr hole surgery", "Hemi-Craniectomy" ]
C
Ans. (c) Burr Hole surgeryThe image shows presence of extra-dural haemorrhage due to presence of biconvex lenticular opacity. Due to risk of brain herniation leading to death best management will be burr hole surgery.
medmcqa
medmcqa_05_02252
Best treatment of below given condition is a diabetic patient?
[ "Ceftriaxone", "Vancomycin", "Amphotericin", "Ketoconazole" ]
C
Ans. C. AmphotericinThe image is of fungal infection of nose, eye & face. In a diabetic patient, due to immune compromised state most common cause of infection is fungal infection specifically.Mucor MycosisOther risk factors for mucor Mycosis:a. Burnsb. Malignanciesc. Splenectomy patientsd. People with wounds.
medmcqa
medmcqa_05_03130
CD8 is a marker for which of the following cell?
[ "T-cell", "B-cell", "NK-cells", "Macrophages" ]
A
Ans. is 'a' i.e., T-cells Important cells with their CD marker are* Primary T cell Associated* CD1, CD3, CD4, CD5, CD8* Primary B cell associated* CD10, CD19, CD20, CD21, CD23, CD79a* Primary monocyte or macrophage associated* CD11c. CD13, CD14, CD15, CD33, CD64* Primary NK cell associated* CD16.CD56* Primary stem cell...
sciq
sciq_01_03002
What has a distinct front and back end?
[ "hydro sphere", "heroclix sphere", "volvox sphere", "imipenem sphere" ]
C
The Volvox sphere has a distinct front and back end. The colony of cells can swim in a coordinated fashion. The cells have eyespots, which are more developed in the cells near the front. This enables the colony to swim towards light.
medmcqa
medmcqa_05_03864
Short-acting non-depolarizing blocker
[ "Rocuronium", "Suxamethonium", "Mivacurium", "Pancuronium" ]
C
SKELETAL MUSCLE RELAXANTS  Skeletal muscle relaxants are drugs that act peripherally at neuromuscular junction/muscle fibre itself or centrally in the cerebrospinal axis to reduce muscle tone.  The neuromuscular blocking agents are used primarily in conjunction with general anesthetics to provide muscle relaxation for...
sciq
sciq_01_08303
What is the term for a certain form of matter that has the same physical properties throughout?
[ "phase", "balance", "structure", "wave" ]
A
8.5 End-of-Chapter Material Chapter Summary To ensure that you understand the material in this chapter, you should review the meanings of the following bold terms in the following summary and ask yourself how they relate to the topics in the chapter. A phase is a certain form of matter that has the same physical proper...
sciq
sciq_01_01674
What is the number of protons in the nucleus?
[ "element", "metallic number", "atomic number", "atomic mass" ]
C
At least by our current understanding, a given atom can be defined by its atomic number and its mass number. The atomic number is the number of protons in the nucleus. All atoms with a given atomic number are the same element, because the chemical properties of an atom are primarily determined by the number of positive...
openbookqa
obqa_02_04297
A chocolate rabbit melts away from
[ "an icy pond", "a freezer", "snow", "a curling iron" ]
D
heat can change the state of matter
sciq
sciq_01_04146
What may be the ancestor of placental mammals?
[ "eomaia", "amphibians", "spirogyra", "fungi" ]
A
The earliest placental mammals may have evolved about 110 million years ago. The ancestor of placental mammals may be the extinct genus Eomaia . Fossils of Eomaia have been found in what is now China. It was only about 10 centimeters (4 inches) long. It was a tree climber and probably ate insects and worms. Eomaia had ...
sciq
sciq_01_10689
Smog is one example of what type of pollution?
[ "energy", "air", "sound", "light" ]
B
This picture shows a thick layer of smog and dust over a very polluted city (Singapore). Smog in the air is a serious health hazard for people living in many big cities around the globe. Smog is one example of air pollution.
sciq
sciq_01_10380
What's it called when the reaction is sped up until equilibrium is established?
[ "favoring", "limiting", "division", "pushing" ]
A
If more NH 3 were added, the reverse reaction would be favored. This “favoring” of a reaction means temporarily speeding up the reaction in that direction until equilibrium is reestablished. Recall that once equilibrium is reestablished, the rates of the forward and reverse reactions are again equal. The addition of NH...
ARC-Challenge
arc_04_02929
In which way are rainforests and coral reefs different from ecosystems with few species?
[ "There are more prey than predators.", "The food web is more stable and lasting.", "Organisms often must compete for food.", "Plant populations are the primary producers." ]
B
null
openbookqa
obqa_02_00213
When being pursued by a lion
[ "a ram will leap", "a mouse will hide", "a cheetah will fight", "a giraffe will dash" ]
D
some animals move quickly to escape predators
openbookqa
obqa_02_01947
What is used by the gas given off by plants?
[ "computers", "the respiratory system", "helium balloons", "other plants" ]
B
the respiratory system takes in oxygen from the air
math_qa
mathqa_03_04511
the ratio of the volumes of a cube to that of the sphere which will fit inside the cube is ?
[ "6.862 kg'", "6.838 kg'", "6.632 kg'", "6.832 kg'" ]
D
52 * 40 * 29 = 60320 48 * 36 * 27 = 46650 - - - - - - - - - - - - 13664 13664 * 1 / 2 = 6832 = > 6.832 kg answer : d
medmcqa
medmcqa_05_02968
Ebsteins anomaly is associated with -
[ "Tricuspid atresia", "Coarctation of aoa", "Cardiomyopathy", "Right ventricular heperophy" ]
A
Ans. is 'a' i.e., Tricuspid atresia o Amongst the given options no one is correct. But best option is 'a' --> though tricuspid atresia is not there, abnormality of tricuspid valve is the basic pathology in Ebstein's anomaly.
openbookqa
obqa_02_04917
If someone is dying of thirst, they can hydrate by
[ "catching rain", "visiting a valley", "drink acid", "find snow" ]
A
acid can cause chemical change
sciq
sciq_01_04695
What kind of current flows in just one direction?
[ "physical current", "slow current", "direct current", "Alternating current" ]
C
When current flows in just one direction, it is called direct current (DC) . The diagram below shows how direct current flows through a simple circuit. An example of direct current is the current that flows through a battery-powered flashlight. In addition to batteries, solar cells and fuel cells can also provide direc...
ARC-Easy
arc_04_00055
Which of the following is an example of a physical change but not a chemical change?
[ "A log gives off heat and light as it burns.", "A tree stores energy from the Sun in its fruit.", "A penny lost in the grass slowly changes color.", "A water pipe freezes and cracks on a cold night." ]
D
null
ARC-Challenge
arc_04_03084
Many school districts are placing dispensers of hand sanitizer in classrooms and computer labs. Which of the following is the most likely purpose of this practice?
[ "conserve water resources", "control noninfectious diseases", "promote safe use of technology", "limit diseases spread by contact" ]
D
null
sciq
sciq_01_00932
In what ocean is the mid-atlantic ridge located?
[ "atlantic ocean", "arctic ocean", "indian ocean", "pacific ocean" ]
A
There is a lot of volcanic activity at divergent plate boundaries in the oceans. As the plates pull away from each other, they create deep fissures. Molten lava erupts through these cracks. The East Pacific Rise is a divergent plate boundary in the Pacific Ocean ( Figure below ). The Mid-Atlantic Ridge is a divergent p...
sciq
sciq_01_07131
What term is used to describe joints in which the bones are connected by cartilage?
[ "cartilaginous joints", "spinal joins", "blob joints", "capillaries joints" ]
A
Cartilaginous Joints Cartilaginous joints are joints in which the bones are connected by cartilage. There are two types of cartilaginous joints: synchondroses and symphyses. In a synchondrosis, the bones are joined by hyaline cartilage. Synchondroses are found in the epiphyseal plates of growing bones in children. In s...
math_qa
mathqa_03_04734
the population of a village is 7800 . it increases annually at the rate of 18 % p . a . what will be its population after 2 years ?
[ "10000", "12000", "13000", "10860" ]
D
"formula : ( after = 100 denominator ago = 100 numerator ) 7800 × 118 / 100 × 118 / 100 = 10860 d"
sciq
sciq_01_10566
Pavement cells, large, irregularly shaped parenchymal cells which lack chloroplasts, make up the majority of what?
[ "layers", "Skin", "dermis", "epidermis" ]
D
This tissue includes several types of specialized cells. Pavement cells, large, irregularly shaped parenchymal cells which lack chloroplasts, make up the majority of the epidermis. Within the epidermis, thousands of pairs of bean-shaped schlerenchymal guard cells swell and shrink by osmosis to open and close stomata , ...
math_qa
mathqa_03_04759
define r * by the equation r * = π - r . then ( ( − π ) * ) * =
[ "− 2 π", "- 1", "− π", "2 π" ]
C
for r * f ( f ( − π ) ) = f ( π − ( − π ) ) = f ( π + π ) = f ( 2 π ) = π − 2 π = − π = c
ARC-Easy
arc_04_01968
The most effective way to show a change happening over time is to display your results using a
[ "line graph.", "Venn diagram.", "pie chart.", "flow chart." ]
A
null
openbookqa
obqa_02_00886
As water gets warmer
[ "it can cause hypothermia", "it will stick to metal surfaces", "it can freeze solids", "it can turn ice into a puddle faster" ]
D
as temperature increases , the ability of that liquid to dissolve solids will increase
ARC-Easy
arc_04_01016
Which substance is usually found in nature as a liquid, solid, and gas?
[ "water", "rock", "metal", "glass" ]
A
null
openbookqa
obqa_02_03810
two females are incapable of
[ "conjuring kin", "talk", "dance", "jog together" ]
A
two females can not usually reproduce with each other
medmcqa
medmcqa_05_02946
Aliskiren is
[ "Aldosteron antagonists", "Renin/Angiotensin antagonist", "Bradykinin analogue", "Prostacyclin analogue" ]
B
(Renin/ Angiotensin antagonist): (508.562- KDT 7th edition)ALISKIREN is a nonpeptide which binds selectively to the catalytic site of renin and competitively blocks the access of angiotensinogen to this site - Ang I is not produced and the chain of renin angiotension system is interrupted while the concentration of ren...
openbookqa
obqa_02_01990
If you are feeling cold, its a good idea to go for a run or even a brisk walk because as you move, your energy is turned into what?
[ "Dogs", "warmth", "icicles", "money" ]
B
moving changes stored energy into motion and heat
sciq
sciq_01_05068
Some plants open their leaves during the day to collect what?
[ "sunlight", "precipitation", "moisture", "energy" ]
A
Plants also detect and respond to the daily cycle of light and darkness. For example, some plants open their leaves during the day to collect sunlight and then close their leaves at night to prevent water loss.
sciq
sciq_01_04897
The prostate is formed of both muscular and which other tissues?
[ "scar", "glandular", "nonvascular tissue", "cartilage tissue" ]
B
Prostate Gland As shown in Figure 27.2, the centrally located prostate gland sits anterior to the rectum at the base of the bladder surrounding the prostatic urethra (the portion of the urethra that runs within the prostate). About the size of a walnut, the prostate is formed of both muscular and glandular tissues. It ...
sciq
sciq_01_10351
What element enters the body when an organism breathes?
[ "water", "methane", "helium", "oxygen" ]
D
What goes into the cell? Oxygen and glucose are both reactants of cellular respiration. Oxygen enters the body when an organism breathes. Glucose enters the body when an organism eats.
sciq
sciq_01_07947
"cardio" has become slang for what type of exercise that raises your heart rate for an extended amount of time?
[ "anaerobic", "cyclical", "kinetic", "aerobic" ]
D
"Cardio" has become slang for aerobic exercise that raises your heart rate for an extended amount of time. Cardio can include biking, running, or swimming. Can you guess one of the main organs of the cardiovascular system? Yes, your heart.
medmcqa
medmcqa_05_00964
Indirect Coomb's test detects:
[ "Antibodies attached to RBC Surface", "Antibodies in the serum", "Antigens attached to RBC Surface", "Antigens in the serum" ]
B
Answer is B (Antibodies in the serum) Indirect Coomb's test detects IgG antibodies in the serum (e.g. Anti-D Antibodies). Direct Coomb's test detects IgG Antibodies (or complements) attached to the surface of RBCs. Direct Antihuman Globulin Test Detects RBCs sensitized with IgG or Complements(C3B or C3d) (DAT; Coomb's;...
math_qa
mathqa_03_01858
the difference between simple interest and compound interest on rs . 1200 for one year at 10 % per annum reckoned half - yearly is :
[ "rs . 2.50", "rs . 3", "rs . 3.75", "rs . 4" ]
B
s . i = ( 1000 * 10 * 4 ) / 100 = rs . 400 c . i = 1200 * 1 + 5 / 100 ) 2 – 1200 = 123 . difference = rs . ( 123 - 120 ) = rs . 3 answer : b
sciq
sciq_01_02049
Triceps and biceps muscles in the upper arm are an example of what type of muscle relationship?
[ "synchronized", "opposing", "symbiotic", "competitive" ]
B
Triceps and biceps muscles in the upper arm are opposing muscles.
sciq
sciq_01_00603
What tissue do clubmosses have that mosses do not?
[ "chorophyll", "dioxide tissue", "nuclei", "vascular tissue" ]
D
Clubmosses can resemble mosses; however, clubmosses have vascular tissue, while mosses do not.
openbookqa
obqa_02_00709
A car is stuck in a ditch, and requires the passengers of the vehicle to get out and push it back onto the road. Two of the three passengers push the car, and they struggle to gain any ground, but when the third passenger helps them
[ "the car struggles to move", "the car gains ground rapidly", "the car is stuck", "the car is too heavy to push" ]
B
as force exerted on an object increases , distance travelled will increase
ARC-Easy
arc_04_00940
Onions can reproduce from bulbs. One parent bulb generates daughter bulbs with duplicate genetic information. Which is the most likely advantage of this kind of reproduction?
[ "Population size remains constant.", "Beneficial mutations are inevitable.", "Genetic variation is maximized.", "Large quantities of individuals can be produced rapidly." ]
D
null
sciq
sciq_01_01027
The largest absorption of heat comes during the vaporization of what?
[ "carbon dioxide", "liquid water", "ice", "magma" ]
B
The total heat absorbed as the ice at -30°C is heated to steam at 140°C is 113.4 kJ. The largest absorption of heat comes during the vaporization of the liquid water.
openbookqa
obqa_02_00367
Thermal conduction occurs when
[ "I leave a log poker in the fire", "I sit down on a bed", "I wave a flag in the air", "I have a party" ]
A
when a cooler object touches a warmer object , thermal conduction occurs
medmcqa
medmcqa_05_04293
PFK-I inhibitor ?
[ "AMP", "Citrate", "Glucose 6 phosphate", "Insulin" ]
B
Ans. is 'b' i.e., Citrate
sciq
sciq_01_01841
What is the term for the height of the wave?
[ "amplitude", "frequency", "magnitude", "vibration" ]
A
(A) A wave consists of alternation crests and troughs. The wavelength (λ) is defined as the distance between any two consecutive identical points on the waveform. The amplitude is the height of the wave. (B) A wave with a short wavelength (top) has a high frequency because more waves pass a given point in a certain amo...