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481 values
sciq-10675
multiple_choice
What is the study of chemical processes that occur in living things?
[ "phrenology", "biochemistry", "cardiology", "physiology" ]
B
sciq-1010
multiple_choice
What is it in bone marrow transplants that may cause a graft versus host reaction?
[ "lymphocytes", "neutrophils", "tumors", "cancer" ]
A
sciq-1801
multiple_choice
What is the ideal mechanical advantage in the single fixed pulley?
[ "1", "4", "zero", "2" ]
A
sciq-6699
multiple_choice
What can human facial expressions communicate?
[ "behaviors", "ideas", "emotions", "theories" ]
C
sciq-8344
multiple_choice
What term is defined as the ability to locate objects in the dark by bouncing sound waves off them.
[ "night vision", "echolocation", "morphology", "thermodynamics" ]
B
sciq-4223
multiple_choice
Metamorphic rocks form when an existing rock is changed by heat or what?
[ "radiation", "chemical reaction", "cold", "pressure" ]
D
sciq-10278
multiple_choice
Historically, certain bacteriophages have also been used as cloning vectors for making what?
[ "diverse libraries", "genomic libraries", "ultraviolet libraries", "specific libraries" ]
B
sciq-270
multiple_choice
More than half of all known organisms are what?
[ "enzymes", "spiders", "mammals", "insects" ]
D
sciq-6742
multiple_choice
Metallic solids are composed entirely of which atoms?
[ "metallic", "metals", "toxic", "organic" ]
A
scienceQA-4838
multiple_choice
Select the bird.
[ "shoebill", "coral snake", "poison dart frog", "bison" ]
A
A shoebill is a bird. It has feathers, two wings, and a beak. Shoebills live in tropical East Africa. Shoebills get their name from their shoe-shaped beaks. A bison is a mammal. It has fur and feeds its young milk. Male bison have horns. They can use their horns to defend themselves. A coral snake is a reptile. It has scaly, waterproof skin. Coral snakes spend most of their time underground or hiding under leaves. A poison dart frog is an amphibian. It has moist skin and begins its life in water. Poison dart frogs come in many bright colors. Their bright color warns other animals that these frogs are poisonous.
sciq-4645
multiple_choice
What type of plug is generally used on metal appliances?
[ "4 prong", "3 prong", "5 prong", ".2 prong" ]
B
sciq-6319
multiple_choice
What is the unit of evolution?
[ "population", "community", "biome", "species" ]
A
sciq-2940
multiple_choice
The rising and sinking of these can cause precipitation?
[ "circular air currents", "global air currents", "underwater currents", "temporary air currents" ]
B
sciq-9110
multiple_choice
What was the informal female name given to the adult fossil found in ethiopia and thought to be over 3 million years old?
[ "lucy", "alice", "linda", "aunt" ]
A
scienceQA-5347
multiple_choice
What do these two changes have in common? water boiling on a stove boiling sugar to make caramel
[ "Both are chemical changes.", "Both are only physical changes.", "Both are caused by heating.", "Both are caused by cooling." ]
C
Step 1: Think about each change. Water boiling on the stove is a change of state. So, it is a physical change. The liquid changes into a gas, but a different type of matter is not formed. Boiling sugar to make caramel is a chemical change. The heat causes the sugar to change into a different type of matter. Unlike sugar, the new matter is brown and sticky. Step 2: Look at each answer choice. Both are only physical changes. Water boiling is a physical change. But boiling sugar to make caramel is not. Both are chemical changes. Boiling sugar to make caramel is a chemical change. But water boiling is not. Both are caused by heating. Both changes are caused by heating. Both are caused by cooling. Neither change is caused by cooling.
sciq-5380
multiple_choice
What is defined as the ability to cause changes in matter?
[ "momentum", "energy", "evolution", "nuclear" ]
B
sciq-7779
multiple_choice
What connection is required for a newborn baby to begin breathing?
[ "connection to the father", "connection to the placenta", "connection to a ventilator", "connection to a heat source" ]
B
sciq-9987
multiple_choice
The passenger pigeon, the dodo bird, and the woolly mammoth represent individual cases of what fate?
[ "accumulation", "extinction", "isolation", "compression" ]
B
sciq-7566
multiple_choice
Dinosaurs filled the niches that mammals fill today during which era?
[ "mesozoic", "Cenozoic", "Proterozoic", "Phanerozoic" ]
A
sciq-10344
multiple_choice
What machines have scientist built to smash particles that are smaller than atoms into each other head-on?
[ "energy accelerators", "particle accelerators", "Atom Accelerators", "nitrogen accelerators" ]
B
sciq-2585
multiple_choice
What are the proteins called that speed up biochemical reactions in cells?
[ "carbohydrates", "hormones", "peptides", "enzymes" ]
D
sciq-3014
multiple_choice
What are 2 common growth patterns of population?
[ "exponential and economical", "migratory and logistic", "organic and inorganic", "exponential and logistic" ]
D
ai2_arc-1094
multiple_choice
Human interaction with the environment has led to increasing amounts of acid rain. Which population have humans adversely affected the most by contributing to the production of acid rain?
[ "frogs in a pond ecosystem", "fish in an ocean ecosystem", "bears in a tundra ecosystem", "lions in a grassland ecosystem" ]
A
sciq-10283
multiple_choice
How do you determine the atomic weight of an element?
[ "subtract protons from electrons", "divide protons and neutrons", "multiply protons and neutrons", "add up protons and neutrons" ]
D
ai2_arc-156
multiple_choice
Repeating experiments improves the likelihood of accurate results because the overall results are
[ "less likely to prove the hypothesis correct.", "more likely to prove the hypothesis correct.", "less likely to be correct due to fewer errors being made.", "more likely to be correct due to fewer errors being made." ]
D
sciq-6096
multiple_choice
The largest region of each of the palatine bone is the what?
[ "big plate", "horizontal plate", "magnetic plate", "abnormal plate" ]
B
sciq-575
multiple_choice
What type of radio waves exist in the 540 to 1600 khz frequency range?
[ "microwaves", "am radio waves", "fm radio waves", "sound waves" ]
B
sciq-7558
multiple_choice
What causes maple leaves to change their colors?
[ "radiation reactions", "chemical reactions", "factor reactions", "artificial preservatives" ]
B
sciq-2222
multiple_choice
A flower's colors come from what part of the plant?
[ "Internode", "vacuole", "glycogen", "Petiole" ]
B
scienceQA-12276
multiple_choice
Select the living thing.
[ "yucca", "candle", "windmill", "airplane" ]
A
Yucca is a living thing. Yucca grows and responds to its environment. It needs food and water. It is made up of many cells. Yucca is a plant. It uses water, air, and sunlight to make food. A candle is not a living thing. A candle does not have all the traits of a living thing. It gives off light and heat, but it does not need food or water to survive. An airplane is not a living thing. An airplane does not have all the traits of a living thing. It needs energy to fly, but it does not eat food. Airplanes get energy from gasoline or other fuel. They do not grow. A windmill is not a living thing. A windmill does not have all the traits of a living thing. It moves in the wind, but it does not grow. It does not need food or water.
sciq-1860
multiple_choice
The body contains how many types of muscle tissue?
[ "three", "two", "four", "seven" ]
A
ai2_arc-629
multiple_choice
Which of the following has the greatest mass?
[ "star", "moon", "planet", "galaxy" ]
D
sciq-5742
multiple_choice
What members of an ecosystem food chain take in food by eating producers or other living things?
[ "consumers", "decomposers", "primary producers", "insectivores" ]
A
sciq-9530
multiple_choice
What is the term for when clumped solids sink to the bottom of the water?
[ "sedimentation", "Foundation", "Clumping", "sediment" ]
A
sciq-8929
multiple_choice
What decreases with the loss of subsequent protons?
[ "seawater strength", "example strength", "Movement strength", "acid strength" ]
D
sciq-178
multiple_choice
Cations have what type of charge?
[ "constant", "negative", "neutral", "positive" ]
D
sciq-3402
multiple_choice
What is a group of similar ecosystems with the same general abiotic factors and primary producers called?
[ "biome", "ecological environment", "ecoculture", "population" ]
A
sciq-3304
multiple_choice
The three types of mammals are characterized by their method of what?
[ "specializaiton", "pattern", "reproduction", "differentiation" ]
C
sciq-4323
multiple_choice
The attractive force between water molecules is what kind of reaction?
[ "symmetrical reaction", "diffusion reaction", "dipole reaction", "aquatic reaction" ]
C
sciq-2449
multiple_choice
What rate is generally higher for endotherms than for ectotherms?
[ "metabolic", "mortality", "reproduction", "respiration" ]
A
sciq-8108
multiple_choice
What do you call an abnormal mass formed when cells divide uncontrollably?
[ "inflammation", "tumor", "layer", "infection." ]
B
sciq-867
multiple_choice
Which kinds of cells have nuclei and other membrane bound organelles?
[ "prokaryotes", "monocytes", "eukaryotes", "lipids" ]
C
sciq-5276
multiple_choice
The number of moles of solute in 1 kg of solvent is defined as what?
[ "singularity", "pollenation", "molarity", "kilocalorie" ]
C
sciq-281
multiple_choice
What do we call the energy-rich product of photosynthesis?
[ "chloride", "insulin", "sugar", "glucose" ]
D
sciq-1865
multiple_choice
Photoautotrophs and chemoautotrophs are two basic types of what?
[ "plants", "autotrophs", "decomposers", "consumers" ]
B
sciq-6357
multiple_choice
What senses the movement of liquid in ear canals?
[ "Ear Drum", "muscle cells", "hair cells", "Brain Cells" ]
C
sciq-2850
multiple_choice
How many underlying principles does the science of biology have?
[ "three", "four", "five", "eleven" ]
B
sciq-8945
multiple_choice
Drip iirigation requires less water and reduces what?
[ "salinization", "bacteria", "moisture", "sediment" ]
A
sciq-9474
multiple_choice
Choosing to not smoke and using sunscreen are examples of lifestyle choices that help prevent forms of what disease?
[ "viral disease", "cancer", "bacterial disease", "pnemonia" ]
B
sciq-10487
multiple_choice
What are ingrowths on arthropod exoskeletons to which muscles attach?
[ "rods", "pores", "joints", "apodemes" ]
D
sciq-10441
multiple_choice
What is the process called when secretory cells export products?
[ "endocytosis", "exocytosis", "morphogenesis", "isolation" ]
B
sciq-8755
multiple_choice
What is the term for the early growth and development of a plant embryo inside a seed?
[ "germination", "secretion", "rumination", "fertilization" ]
A
sciq-3045
multiple_choice
Where do most ecosystems get their energy from?
[ "heat", "water", "sun", "earth" ]
C
sciq-5590
multiple_choice
An infection of the brain is called?
[ "syphilis", "tuberculosis", "encephalitis", "influenza" ]
C
sciq-10041
multiple_choice
What are the tiny sacs in the lungs where gas exchange takes place?
[ "alveoli", "chambers", "vacuoles", "ganglion" ]
A
scienceQA-6124
multiple_choice
What do these two changes have in common? water boiling on a stove tearing a piece of paper
[ "Both are caused by cooling.", "Both are only physical changes.", "Both are chemical changes.", "Both are caused by heating." ]
B
Step 1: Think about each change. Water boiling on the stove is a change of state. So, it is a physical change. The liquid changes into a gas, but a different type of matter is not formed. Tearing a piece of paper is a physical change. The paper tears into pieces. But each piece is still made of paper. Step 2: Look at each answer choice. Both are only physical changes. Both changes are physical changes. No new matter is created. Both are chemical changes. Both changes are physical changes. They are not chemical changes. Both are caused by heating. Water boiling is caused by heating. But tearing a piece of paper is not. Both are caused by cooling. Neither change is caused by cooling.
sciq-10346
multiple_choice
The type of what dictates how far it can penetrate into matter, such as lead or human flesh?
[ "radiation", "specific gravity", "insulation", "evaporation" ]
A
sciq-353
multiple_choice
The attraction between all objects in the universe is known as ______.
[ "magnetism", "gravity", "variation", "electricity" ]
B
sciq-445
multiple_choice
Where do the eggs develop?
[ "the ovaries", "the follicles", "the glands", "the uterus" ]
A
sciq-7236
multiple_choice
What nucleic acid stores the genetic information?
[ "Nucleus", "Ribosomes", "dna", "molecule" ]
C
sciq-1852
multiple_choice
What forms when water vapor condenses around particles in the air?
[ "humididty", "clouds", "wind", "storms" ]
B
sciq-5173
multiple_choice
What state of matter has a definite volume, but not a definite shape?
[ "solid", "gas", "mixture", "liquid" ]
D
sciq-7221
multiple_choice
What's the most common disorder from having an extra chromosome?
[ "Turner syndrome", "down syndrome", "Williams syndrome", "cri-du-chat syndrome" ]
B
sciq-2911
multiple_choice
Where would you find most pollution of ocean water?
[ "coastline", "trenches", "poles", "midocean" ]
A
sciq-366
multiple_choice
The kinetic-molecular theory as it applies to gases has how many basic assumptions?
[ "four", "seven", "two", "five" ]
D
sciq-11410
multiple_choice
How many possible alleles do the majority of human genes have?
[ "less than four", "two or less", "two or more", "three or more" ]
C
sciq-11040
multiple_choice
Which veins return oxygen-rich blood from the lungs to the heart?
[ "respiratory", "varicose", "jugular", "pulmonary" ]
D
sciq-5959
multiple_choice
What scale measures acidity?
[ "ph scale", "frequency scale", "salinity scale", "richter scale" ]
A
sciq-8302
multiple_choice
Groundwater dissolves minerals and rocks into what?
[ "sand", "gravel", "grit", "ions" ]
D
sciq-10739
multiple_choice
Which part of the body of amphibians, easily absorbs substances from the environment?
[ "skin", "scales", "liver", "Eyes" ]
A
sciq-9482
multiple_choice
What is the time interval required for one complete wave to pass a point called?
[ "cycle", "period", "half-life", "minute" ]
B
sciq-4630
multiple_choice
What type of vents are giant tube worms found at?
[ "Heated", "hydrothermal", "oxygen", "temperature" ]
B
sciq-10454
multiple_choice
What is defined as the velocity of the object at a given moment?
[ "specific gravity", "inertia", "instantaneous velocity", "relativistic velocity" ]
C
sciq-4947
multiple_choice
What did rockets help launch into space during their beginning?
[ "shuttles", "satellites", "sensors", "rovers" ]
B
sciq-10255
multiple_choice
An organism's unique role in the ecosystem is called its what?
[ "adaptation", "focus", "niche", "purpose" ]
C
sciq-7928
multiple_choice
Each myofibril is made up of two types of proteins, called actin and what?
[ "dynein", "elongation", "Fatty Acid", "myosin" ]
D
sciq-9344
multiple_choice
Along with muscles, what helps the body move with relatively little force?
[ "nerves", "limbs", "glands", "joints" ]
D
sciq-10132
multiple_choice
What type of biomes are found in the salt water of the ocean?
[ "marine", "major", "active", "surreal" ]
A
sciq-4930
multiple_choice
What is the most common type of muscle in the human body?
[ "skeletal", "digestive", "fetal", "internal" ]
A
sciq-8277
multiple_choice
Which factor ruins renewable resources like soil and water?
[ "careless human action", "resentful human action", "hateful human action", "melancholic human action" ]
A
sciq-8628
multiple_choice
Pulmonary ventilation in mammals occurs via what?
[ "inflammation", "osmosis", "ingestion", "inhalation" ]
D
scienceQA-10321
multiple_choice
What do these two changes have in common? cutting an apple ice melting in a glass
[ "Both are only physical changes.", "Both are caused by cooling.", "Both are chemical changes.", "Both are caused by heating." ]
A
Step 1: Think about each change. Cutting an apple is a physical change. The apple gets a different shape. But it is still made of the same type of matter as the uncut apple. Ice melting in a glass is a change of state. So, it is a physical change. The solid ice becomes liquid, but it is still made of water. A different type of matter is not made. Step 2: Look at each answer choice. Both are only physical changes. Both changes are physical changes. No new matter is created. Both are chemical changes. Both changes are physical changes. They are not chemical changes. Both are caused by heating. Ice melting is caused by heating. But cutting an apple is not. Both are caused by cooling. Neither change is caused by cooling.
sciq-7012
multiple_choice
All the atoms of a given element have the same number of what in their nucleus, though they may have different numbers of neutrons?
[ "compounds", "protons", "molecules", "electrons" ]
B
sciq-9259
multiple_choice
What is the clear, curved structure that works with the cornea to help focus light at the back of the eye?
[ "lens", "pupil", "iris", "retina" ]
A
sciq-7260
multiple_choice
What is the natural movement called within your intestines?
[ "peristalsis", "fibroblasts", "proteolysis", "progress" ]
A
sciq-11439
multiple_choice
What is the term for a sac filled with fluid or other material?
[ "blister", "lesion", "tumor", "cyst" ]
D
sciq-4449
multiple_choice
What is the measure of an individual’s weight-to-height ratio called?
[ "body mass index (bmi)", "body matter index (bmi)", "density index (di)", "body density index (bdi)" ]
A
sciq-5895
multiple_choice
How much larger can the most powerful light microscropes make an image?
[ "2000 times", "100 times", "500 times", "10 times" ]
A
ai2_arc-767
multiple_choice
The weight of heavy machinery compacts soil, especially when it is wet. Why do farmers avoid driving their machinery across wet ground?
[ "Compacted soil will absorb too much water.", "Plants cannot grow when soil is compacted.", "Minerals are destroyed when soil is compacted.", "Compacted soil increases soil acidity." ]
B
sciq-5781
multiple_choice
The global biosphere includes all areas of what?
[ "life", "geography", "study", "science" ]
A
sciq-8737
multiple_choice
What happens when water is removed from the endospore?
[ "its metabolism halts", "hibernation", "suspension", "reversal" ]
A
sciq-6794
multiple_choice
When is a moving car said to be in dynamic equilibrium?
[ "when accelerating", "at rest", "zero net force", "at homeostasis" ]
C
sciq-1708
multiple_choice
Most diseases caused by bacteria can be cured by which medicines?
[ "hydroxides", "antioxidants", "antibiotics", "inhibitors" ]
C
sciq-707
multiple_choice
What is a common age-related bone disease in which bone density and strength is decreased?
[ "fibrosis", "lupus", "arthritis", "osteoporosis" ]
D
scienceQA-11697
multiple_choice
What do these two changes have in common? making jam photosynthesis
[ "Both are chemical changes.", "Both are caused by cooling.", "Both are only physical changes.", "Both are caused by heating." ]
A
Step 1: Think about each change. Making jam is a chemical change. It involves mixing fruit, sugar, and a substance called pectin. When these ingredients are mixed and cooked, the chemical bonds in their molecules are broken. The atoms then link together to form different molecules that make up the jam. Photosynthesis is a chemical change. Plants make sugar using carbon dioxide, water, and energy from sunlight. Step 2: Look at each answer choice. Both are only physical changes. Both changes are chemical changes. They are not physical changes. Both are chemical changes. Both changes are chemical changes. The type of matter before and after each change is different. Both are caused by heating. The reaction that makes jam is caused by heating. But photosynthesis is not. Both are caused by cooling. Neither change is caused by cooling.
sciq-9933
multiple_choice
Whisk ferns have yellow sporangia and no what?
[ "leaves", "roots", "stems", "flowers" ]
A
sciq-9984
multiple_choice
Translation is the second part of the central dogma of what?
[ "molecular gastronomy", "relativity", "string theory", "molecular biology" ]
D
sciq-7789
multiple_choice
A tropism where light is the stimulus is known as what?
[ "Geotropism", "Thermotropism", "Atropism", "phototropism" ]
D
sciq-1279
multiple_choice
In animals, what process occurs only in germ cells, which are in the ovaries or testes?
[ "meiosis", "electrolysis", "reproduction", "mitosis" ]
A
sciq-1135
multiple_choice
In how many states does water exist on earth?
[ "three matter states", "one matter states", "eight matter states", "two matter states" ]
A