question stringlengths 68 502 | answer stringclasses 4
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Question: Down syndrome is caused by having three copies of what, a condition known as trisomy?
Options:
A. variation
B. genome
C. DNA
D. chromosome | D |
Question: What kind of weathering changes the size of a mineral or rock but does not change its chemical composition?
Options:
A. radiation
B. chemical reaction
C. mechanical weathering
D. molecular weathering | C |
Question: What do waves do when they are unable to pass through an object?
Options:
A. produce off
B. Roll over.
C. develop off
D. reflect off | D |
Question: What is used to date older fossils?
Options:
A. search engines
B. electron microscopes
C. radioactive isotopes
D. litmus testing | C |
Question: What external feature in human beings is responsible for balance?
Options:
A. ears
B. tails
C. hands
D. brain | A |
Question: What branch of science is the study of human origins?
Options:
A. biology
B. palaeobiology
C. paleoanthropology
D. pharmacology | C |
Question: Skeletal muscle cells and cardiac muscle cells share what property, which is not shared by smooth muscle cells?
Options:
A. striations
B. overlap
C. surfaces
D. filaments | A |
Question: Latitude affects the amount of what received by an area, which in turn affects the temperature of a region?
Options:
A. solar radiation
B. chemical radiation
C. geothermal radiation
D. current radiation | A |
Question: What do you call an abnormal mass formed when cells divide uncontrollably?
Options:
A. tumor
B. infection.
C. inflammation
D. layer | A |
Question: What layer is below the lithosphere and in the upper mantle?
Options:
A. troposphere
B. asthenosphere
C. hydrosphere
D. magnetosphere | B |
Question: What are lipopolysaccharide components of the outer membrane of gram-negative bacteria?
Options:
A. hormones
B. endotoxins
C. pathogens
D. reactants | B |
Question: In aquatic communities, the main producers are photosynthetic protists and what?
Options:
A. prokaryotes
B. arthropods
C. eukaryotes
D. crustaceans | A |
Question: How does the liquid in a thermometer respond to heat or cold?
Options:
A. rises or vaporizes
B. expands or contracts
C. freezes or boils
D. disappears | B |
Question: In most fish, where does the embryo develop in relation to the mother's body?
Options:
A. water
B. outside
C. Eggs
D. inside | B |
Question: What is the name of the life stage when a child becomes sexually mature?
Options:
A. adolescence
B. adulthood
C. puberty
D. maturity | C |
Question: Cytokinesis divides what part of the cell into two distinctive cells?
Options:
A. cell wall
B. cytoplasm
C. nucleus
D. DNA | B |
Question: What is it called when a liquid displays more attraction between the liquid particles than attraction between the liquid and the glass?
Options:
A. cohesion
B. tension
C. flexion
D. stability | A |
Question: In what type of mining must tunnels be blasted into the rock so that miners and equipment can get to the ore?
Options:
A. strip mining
B. gold mining
C. underground mining
D. open-pit mining | C |
Question: What kind of energy is released when the thermochemical reaction of a campfire converts wood to carbon dioxide and water?
Options:
A. ultraviolet
B. heat
C. light
D. smoke | B |
Question: 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?
Options:
A. reproduction
B. photosynthesis
C. growth
D. digestion | B |
Question: While normal light microscopes can magnify objects up to about 1,500 times, what advanced instruments can magnify objects up to 1,000,000 times?
Options:
A. micro microscopes
B. electric microscopes
C. electron microscopes
D. magnetic microscopes | C |
Question: What kind of energy does pyruvate have a lot of?
Options:
A. nuclear
B. thermal
C. chemical
D. gravitational | C |
Question: What type of landscape has grasslands with scattered trees, are hot and have extensive dry seasons along with fire?
Options:
A. arctic
B. savannas
C. deserts
D. tundra | B |
Question: What may be lost when waves travel through matter, but not when they travel through space?
Options:
A. frequency
B. matter
C. threshold
D. energy | D |
Question: Where does mechanical digestion begin?
Options:
A. mouth
B. stomach
C. brain
D. intestines | A |
Question: How does the sun generate energy?
Options:
A. certain fusion
B. nuclear fusion
C. matter multiplication
D. atomic division | B |
Question: What stored form of energy is made up of glycerol and three fatty acid chains?
Options:
A. particulates
B. hydrocarbons
C. triglycerides
D. carbohydrates | C |
Question: What do jellyfish give off to startle possible predators?
Options:
A. plankton
B. light
C. energy
D. electricity | B |
Question: What is an example of a metaloid element?
Options:
A. fluorine
B. argon
C. silicon
D. chlorine | C |
Question: Scientists use a quantity called __________ as a measure of disorder, or randomness.
Options:
A. motion
B. vector count
C. entropy
D. chance level | C |
Question: Niche refers to the role a species plays in what?
Options:
A. migration
B. the ecosystem
C. reproduction
D. the habitat | B |
Question: An irreversible increase in size is known as?
Options:
A. volume
B. mass
C. growth
D. strength | C |
Question: Bacterial contamination of foods can lead to digestive problems, an illness known as what?
Options:
A. headache
B. food poisoning
C. acid reflux
D. ulcers | B |
Question: All combustion reactions are what type of reactions?
Options:
A. reversible
B. flammable
C. exothermic
D. geothermal | C |
Question: What produces microspores that develop into pollen grains containing male gametophytes?
Options:
A. petals
B. stamens
C. leaves
D. stems | B |
Question: When a star's core collapses inward while the outer layers spread and cool, what "colorful" celestial body forms?
Options:
A. red giant
B. green giant
C. white giant
D. blue giant | A |
Question: Timber, obtained from trees that can be replanted to replace those that are cut down, is an example of what type of resource?
Options:
A. nonrenewable
B. mineral
C. renewable
D. fossil fuel | C |
Question: What type of blood does the right side of the heart collect and then pump to the lungs?
Options:
A. oxygen-rich blood
B. nitrogen-rich blood
C. nitrogen-poor blood
D. oxygen-poor blood | D |
Question: What elements have the highest attraction for electrons?
Options:
A. nonmetals
B. metals
C. carbons
D. gases | A |
Question: What is the layman's term for mammals raising their hair with tiny muscles in the skin, something that is automatic in humans sensing cold?
Options:
A. goosebumps
B. hypothermia
C. spine tingling
D. follicles | A |
Question: What are ring-shaped hydrocarbons called?
Options:
A. reverse hydrocarbons
B. cylindrical hydrocarbons
C. cyclic hydrocarbons
D. curved hydrocarbons | C |
Question: What increases in processes in which solid or liquid reactants form gaseous products and when solid reactants form liquid products?
Options:
A. entropy
B. evaporation
C. glucose
D. respiration | A |
Question: How many pairs of legs do arachnids have?
Options:
A. 4
B. 8
C. 6
D. ten | A |
Question: Besides the uppermost mantle, what else is the lithosphere composed of?
Options:
A. surface
B. crust
C. inner core
D. outer core | B |
Question: What is another term for dry ice?
Options:
A. liquid nitrogen
B. solid carbon dioxide
C. ice crystals
D. carbonated ice | B |
Question: Name the process that produces many copies of a certain gene.
Options:
A. gene cloning
B. gene addition
C. gene multiplication
D. gene diversion | A |
Question: Rupture or blockage of arteries in the head is the usual cause of what condition?
Options:
A. stroke
B. heart attack
C. migraine headache
D. heart disease | A |
Question: What type of lines run next to each other?
Options:
A. fault lines
B. contour lines
C. perpendicular lines
D. crater lines | B |
Question: What type of light sensing organs do scaophopoda have?
Options:
A. cilia
B. setae
C. antennae
D. radula | D |
Question: What kind of cleavage do mammalian eggs exhibit?
Options:
A. holoblastic
B. cocklebur
C. Meroblastic
D. spicule | A |
Question: What is the name of the process for delivering water to crops?
Options:
A. reclamation
B. bilge
C. irrigation
D. drainage | C |
Question: What is the process in which a liquid boils and changes to a gas?
Options:
A. melting
B. sublimation
C. vaporization
D. freezing | C |
Question: What are the two most common common ways that brain and spinal cord injuries occur?
Options:
A. car crashes and falls
B. falls and surgical error
C. car crashes and athletic activities
D. sports and household accidents | C |
Question: What is the largest planet in the solar system?
Options:
A. mars
B. jupiter
C. saturn
D. pluto | B |
Question: What are elements required in very small amounts?
Options:
A. micronutrients
B. pollutants
C. minerals
D. macronutrients | A |
Question: What can be calculated by multiplying an object’s mass in kilograms (kg) by its velocity in meters per second (m/s)?
Options:
A. momentum
B. energy
C. ground speed
D. height | A |
Question: What will happen to a rock when it's under tremendous stress?
Options:
A. it will solidify
B. it will rebound
C. it will fracture
D. it will slow | C |
Question: Very large stars eventually become what extremely dense space regions, which are so dense that no light can escape from them?
Options:
A. black holes
B. worm holes
C. dark matter
D. moons | A |
Question: Which theory suggests plant species richness increases with island size?
Options:
A. island equilibrium model
B. island biology model
C. island symbolic model
D. island ecosystem model | A |
Question: What state of hydrogen can be predicted based on the atoms to which it is bonded?
Options:
A. evaporation
B. precipitation
C. condensation
D. oxidation | D |
Question: What occurs when there is little to no rain in a period of time?
Options:
A. droughts
B. pollution
C. floods
D. hurricanes | A |
Question: At any specific time, the rate at which a reaction is proceeding is known as its what?
Options:
A. instantaneous rate
B. spontaneous rate
C. immediate rate
D. emitted rate | A |
Question: The skin is a familiar organ made of what kind of tissue?
Options:
A. aberrant tissue
B. recurrent tissue
C. epithelial tissue
D. innate tissue | C |
Question: Evolution that occurs over a short period of time is known as what?
Options:
A. short term evolution
B. microevolution
C. relatedness
D. pseudoevolution | B |
Question: What do osteoblasts secrete that mineralizes to become bone matrix?
Options:
A. carbon
B. calcium
C. spongin
D. collagen | D |
Question: Atoms that have gained electrons and become negatively charged are called what?
Options:
A. negative atoms
B. cations
C. anions
D. negative ions | D |
Question: Snakes are which type of animal?
Options:
A. carnivorous
B. omnivores
C. herbivorous
D. vegivors | A |
Question: Cancer occurs most often in adults over what age?
Options:
A. twenty
B. seventy
C. thirty
D. fifty | D |
Question: Mammals are either herbivores, carnivores or what?
Options:
A. nematodes
B. vegetarians
C. decomposers
D. omnivores | D |
Question: What paired human organs play a vital role in maintaining homeostasis?
Options:
A. ears
B. eyes
C. kidneys
D. lungs | C |
Question: What is the process in which glucose is made using energy in light called?
Options:
A. photogenesis
B. photosynthesis
C. glucosynthesis
D. gluconeogenesis | B |
Question: What zone is outside the radiative zone?
Options:
A. diffusion zone
B. peripheral zone
C. convection zone
D. activation zone | C |
Question: What do you call the temperature at which a liquid boils and starts changing to a gas?
Options:
A. vapor point
B. melting point
C. boiling point
D. transformation point | C |
Question: The distinctive appearance of what tissue is due to polysaccharides called chondroitin sulfates?
Options:
A. membrane
B. bone
C. collagen
D. cartilage | D |
Question: In the humid subtropical climate, summers are ____ but winters are very cold.
Options:
A. windy
B. dry
C. long
D. wet | D |
Question: What are found primarily in lines around the edges of some continents?
Options:
A. glaciers
B. earthquakes
C. Reefs
D. volcanoes | B |
Question: What is another name for trisomy 21?
Options:
A. Fragile X
B. down syndrome
C. cystic fibrosis
D. Tay-Sachs Disease | B |
Question: Which part of the brain regulates the rate of breathing?
Options:
A. brain stem
B. brain charge
C. brain stem
D. brain uptake | A |
Question: Light with the longest wavelengths is called what?
Options:
A. infrared light
B. visible light
C. UV light
D. X-rays | A |
Question: Which gas do people exhale during each breath?
Options:
A. carbon monoxide
B. carbon dioxide
C. nitrogen
D. oxygen | B |
Question: Nonvascular plants such as liverworts, hornworts, and mosses lack what three typical plant features?
Options:
A. flowers, leaves, bark
B. roots, leaves, chloroplasts
C. chloroplasts, stems, flowers
D. roots, stems, leaves | D |
Question: Much of the iron produced is refined and converted into what?
Options:
A. wood
B. sugar
C. steel
D. plastic | C |
Question: What can be formed by converging light rays behind a lens, onto a piece of film?
Options:
A. a prism
B. a mirror
C. a kaleidoscope
D. a photograph | D |
Question: What is the star-like structure inside the paramecia?
Options:
A. the contractile vacuole
B. the elongated vacuole
C. the baré vacuole
D. the reflex vacuole | A |
Question: What is the study of the chemical elements necessary for plant growth called?
Options:
A. photosynthesis
B. phototropism
C. plant propagation
D. plant nutrition | D |
Question: Both alpha and beta decay change the number of what in an atom's nucleus?
Options:
A. protons
B. electrons
C. Gamma decay
D. neutrons | A |
Question: What types of living things are divided into nonvascular and vascular groupings?
Options:
A. plants
B. animals
C. mammals
D. organs | A |
Question: What can exposure to chemical or biological agents cause later in life?
Options:
A. adaptation
B. an acquired immunodeficiency
C. spontaneous mutation
D. regression | B |
Question: What direction are sediments deposited?
Options:
A. magnetic poles
B. horizontally
C. diagonally
D. vertically | B |
Question: When the air temperature reaches the dew point, water vapor starts to do what?
Options:
A. germinate
B. evaporate
C. dissipate
D. condense | D |
Question: What do you call the metal elements listed below the periodic table?
Options:
A. process metals
B. transition metals
C. shift metals
D. rare metals | B |
Question: Each silicon atom shares how many valence electrons with other silicon atoms in a crystal?
Options:
A. three
B. ten
C. five
D. four | D |
Question: What is produced by the reaction of metal oxide with water?
Options:
A. hydrogen gas
B. heat energy
C. soluble metal hydroxides
D. rust | C |
Question: Which type of weathering causes changes int he rocks materials, chemical or mechanical?
Options:
A. mineral
B. chemical
C. nuclear
D. liquid | B |
Question: What type of rocks form from sediments that are cemented and compacted?
Options:
A. crystalline
B. limestone
C. granite
D. sedimentary | D |
Question: What is the common term for solid carbon dioxide, which is used as a coolant?
Options:
A. dry ice
B. antifreeze
C. blue ice
D. liquid nitrogen | A |
Question: What is the most common type of joint in the human body?
Options:
A. movable joints
B. transverse joints
C. dorsal joints
D. proximal joints | A |
Question: What kind of relationship exists between living things that depend on the same resources?
Options:
A. parasitic
B. competition
C. antagonistic
D. symbiotic | B |
Question: Latitude plays an important role in determining what in a region?
Options:
A. drought
B. climate
C. landscape
D. migration | B |
Question: A very small artery that leads to a capillary is known as what?
Options:
A. capillary junction
B. arteriole
C. arterium
D. vein | B |
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