question stringlengths 68 502 | answer stringclasses 4
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|---|---|
Question: The union of gametes is called?
Options:
A. fusion
B. fertilization
C. pollination
D. migration | B |
Question: What type of behavior occurs naturally in all animals of a given species?
Options:
A. learned
B. stimulated
C. innate
D. acquired | C |
Question: What parts of comets make them easy to see?
Options:
A. arcs and tails
B. comas and tails
C. craters and tails
D. novas and tails | B |
Question: What gives the body shape and support?
Options:
A. gravity
B. organs
C. skeleon
D. muscles | C |
Question: What do you call sound that has a wave frequency higher than the human ear can detect?
Options:
A. supersonic sound
B. dynamic sound
C. ultrasound
D. hypersonic sound | C |
Question: Plants not only contribute food but what else for organisms?
Options:
A. hydrogen
B. oxygen
C. carbon
D. dioxide | B |
Question: Substances that act as both weak acids and bases are said to be what?
Options:
A. atmospheric
B. amphoteric
C. hygroscopic
D. amphiphilic | B |
Question: What is the medical process of removing wastes and excess water from the blood by diffusion and ultrafiltration called?
Options:
A. dialysis
B. tumors
C. arthritis
D. digestion | A |
Question: What is the "a" horizon commonly known as?
Options:
A. sediment
B. core
C. crust
D. topsoil | D |
Question: What are the building blocks of life?
Options:
A. seeds
B. bricks
C. muscles
D. cells | D |
Question: The amount of energy needed to raise the temperature of one gram of liquid water by 1°c is also known as?
Options:
A. specific heat
B. calorie
C. mass
D. Kelvin | A |
Question: What helps amplify the effects of extracellular signals?
Options:
A. enzymatic cascades
B. spontaneous cascades
C. mutation cascades
D. electrical cascades | A |
Question: What units are typically used to measure heats of reaction?
Options:
A. kilobytes
B. kilojoules
C. volts
D. degrees Celsius | B |
Question: What are solutions that maintain a relatively constant ph when an acid or a base is added?
Options:
A. liquids
B. water
C. gases
D. buffer | D |
Question: Along with dna, what is the other main type of nucleic acid?
Options:
A. protein
B. rna
C. nucleotides
D. cytoplasm | B |
Question: Glutathione is a low-molecular-weight compound found in living cells that is produced naturally by what?
Options:
A. brain
B. liver
C. blood
D. amino acids | B |
Question: What work together in pairs to bend or straighten a joint?
Options:
A. cartilage tissues
B. collagen bands
C. nerve fibers
D. muscles | D |
Question: What are the outer-shell electrons of an atom called?
Options:
A. outer electrons
B. valence electrons
C. organism electrons
D. helium electrons | B |
Question: What kind of reproduction is vegetative reproduction?
Options:
A. sexual
B. asexual
C. mitosis
D. meiosis | B |
Question: What type of tissue runs the length of a stem in vascular bundles?
Options:
A. muscle tissue
B. thermal tissue
C. cardiac tissue
D. vascular tissue | D |
Question: Birds have a relatively large heart and a rapid what?
Options:
A. digestive process
B. heart rate
C. blink rate
D. lifespan | B |
Question: When a warm air mass becomes trapped between two cold air masses, what type of front occurs?
Options:
A. storm front
B. obscured front
C. stationary front
D. occluded front | D |
Question: What is water falling from the sky called?
Options:
A. distillation
B. erosion
C. precipitation
D. vaporization | C |
Question: What forms when atoms share or transfer valence electrons?
Options:
A. replicas
B. fusion
C. bonds
D. levels | C |
Question: Which part of the axon has a higher membrane potential?
Options:
A. axon hillock
B. canals hillock
C. biofilm hillock
D. muscular hillock | A |
Question: A diploid zygote is formed when one sperm does what?
Options:
A. incapacitates the egg
B. fertilizes the egg
C. cracks the egg
D. repels the egg | B |
Question: As ph increases what happens to a solution?
Options:
A. becomes more basic
B. stays the same
C. depends on the solution
D. becomes less basic | A |
Question: What is the term for changes in speed or direction, changes that make a roller coaster ride so exciting?
Options:
A. transmission
B. acceleration
C. inclination
D. oscillation | B |
Question: What do aquatic mollusk species use for respiration?
Options:
A. phototropism
B. pores
C. lungs
D. gills | D |
Question: Because the solute is moving down the concentration gradient, and no input of energy is required, facilitated diffusion is considered what type of transport?
Options:
A. adaptive
B. neutral
C. active
D. passive | D |
Question: What does fiber help keep at normal levels in the body?
Options:
A. bloodpressure
B. hydration
C. salt and cholesterol
D. sugar and lipids | D |
Question: What is it called when plant roots absorb liquid water and release water vapor into the atmosphere?
Options:
A. transpiration
B. evaporation
C. perspiration
D. sedimentation | A |
Question: Fossil fuels and nuclear power are what type of resource?
Options:
A. recurring
B. renewable
C. nonrenewable
D. reusable | C |
Question: The stoichiometric coefficients indicate the relative amounts of what?
Options:
A. trajectories and products
B. reactions and products
C. reactants and products
D. exigencies and products | C |
Question: Blood enters the heart in what valve?
Options:
A. mitral
B. tricuspid
C. aortic
D. atria | D |
Question: What works through chemical reactions that change the rock?
Options:
A. chemical breakdown
B. rock weathering
C. gradual weathering
D. chemical weathering | D |
Question: What is necessary for new alleles to be created?
Options:
A. new mutations
B. new frequencies
C. cross-pollination
D. new rna | A |
Question: What does the placenta sustain during pregnancy?
Options:
A. the fetus
B. the endocrine system
C. the mother
D. the heart | A |
Question: Other than nitrogen, which nutrient most often limits marine production?
Options:
A. calcium
B. phosphorus
C. zinc
D. potassium | B |
Question: What astronomical phenomenon is often comprised of remnants of the earliest material that formed in the solar system?
Options:
A. particles
B. asteroids
C. meteorites
D. comets | C |
Question: Minerals are grouped based on what?
Options:
A. carbon composition
B. chemical composition
C. mineral composition
D. density | B |
Question: What is the term for the average number of individuals in a population for a given area?
Options:
A. Area Density
B. population density
C. result density
D. population structure | B |
Question: What is the shape of the thyroid gland?
Options:
A. triangle-shaped
B. square-shaped
C. snake - shaped
D. butterfly-shaped | D |
Question: Instead of using their nose, reptiles can use what organ to smell scents?
Options:
A. liver
B. eye
C. tongue
D. bladder | C |
Question: How does the diaphragm look like when it is at rest?
Options:
A. dome-shaped
B. dam - shaped
C. inverted
D. flat | A |
Question: What is the smallest unit of matter that still maintains it's properties of being an element?
Options:
A. an electron
B. a proton
C. a cell
D. an atom | D |
Question: Evolution occurs by what process whereby better-adapted members pass along their traits, according to darwin?
Options:
A. natural selection
B. spontaneous variation
C. organic selection
D. natural change | A |
Question: In flowering plants, male gametophytes are in grains of what?
Options:
A. pollen
B. bacteria
C. viruses
D. nitrogen | A |
Question: How many different ways can molecules pass through a phospholipid membrane?
Options:
A. three
B. six
C. four
D. five | A |
Question: Snow and rain are forms of what weather?
Options:
A. sediment
B. precipitation
C. evaporation
D. cold fronts | B |
Question: There is a positive correlation between the ability to conduct thermal energy and what other energy, as exemplified by metals?
Options:
A. elastic
B. electricity
C. nuclear
D. gravitational | B |
Question: Most ocean waves are caused by what?
Options:
A. wind
B. gravity
C. radiation
D. animals | A |
Question: What kind of climates are found at or near the equator?
Options:
A. dry grasslands
B. arctic climates
C. tundra
D. tropical climates | D |
Question: The uranium series is a chain constituting one what, which encompass naturally occurring isotopes of the heaviest elements?
Options:
A. nuclear decay family
B. fuel decay family
C. radioactive decay family
D. gland decay family | C |
Question: Producing light without a high temperature is called?
Options:
A. luminescence
B. fluorescence
C. plasma
D. effervescence | A |
Question: Mutualism is a symbiotic relationship that has what effect on both species involved?
Options:
A. beneficial
B. disadvantageous
C. harmful
D. destructive | A |
Question: What do you call chemical reactions that take place inside living things?
Options:
A. physical reactions
B. contaminated reactions
C. autonomous reactions
D. biochemical reactions | D |
Question: What types of blood cells are required for aerobic respiration?
Options:
A. red blood cells
B. large blood cells
C. white blood cells
D. grey blood cells | A |
Question: The phase transition of a substance changing from a liquid state to a gaseous state is an example of what?
Options:
A. entropoy
B. catostrophy
C. trichina
D. spirogyra | A |
Question: What is the fracture called when rocks on both sides move?
Options:
A. a crevice
B. a stress fracture
C. a fault
D. a shear | C |
Question: In heart muscle, what released by neurons activates a signal transduction pathway?
Options:
A. acetylcholine
B. glutamate
C. dopamine
D. glucose | A |
Question: What do some plants produce that protects dormant seeds and aids in their dispersal?
Options:
A. leaves
B. fruit
C. roots
D. stems | B |
Question: In a generator, work done to turn the coil is converted to what type of energy?
Options:
A. power
B. voltage
C. electric
D. solar | C |
Question: What do you call a pattern of stars in the night sky?
Options:
A. cluster
B. Solar Systems
C. planets
D. constellation | D |
Question: An antigen is a macromolecule that reacts with components of what?
Options:
A. digestion system
B. pulmonary system
C. immune system
D. circulatory system | C |
Question: The measure of a substances entropy at 25 degrees celsius is known as it's?
Options:
A. new entropy
B. standard entropy
C. specific entropy
D. limited entropy | B |
Question: Gastric emptying is regulated by both the stomach and what other digestive structure?
Options:
A. duodenum
B. appendix
C. esophagus
D. small intestine | A |
Question: What is the type of cell division where the number of chromosomes is reduced in half?
Options:
A. cloning
B. mitosis
C. meiosis
D. interphase | C |
Question: What is the most common cause of lung cancer?
Options:
A. restaurant smoke exposure
B. coal smoke exposure
C. tobacco smoke exposure
D. tree smoke exposure | C |
Question: Some consumers such as the mushroom get their energy from what?
Options:
A. dead organic matter
B. inorganic matter
C. minerals
D. solar energy | A |
Question: What does the second number in a blood pressure reading measure?
Options:
A. external pressure
B. optimal pressure
C. epithelial pressure
D. diastolic pressure | D |
Question: The rock of the mantle is mostly what?
Options:
A. peridotite
B. crystalline
C. silicon
D. metamorphic | A |
Question: Ocean ridges formed by marine invertebrates living in warm shallow waters within the photic zone of the ocean are called what?
Options:
A. lagoon
B. trenches
C. break water
D. coral reefs | D |
Question: What compound is formed when there are sparking electrical equipment?
Options:
A. smog
B. carbon
C. water
D. ozone | D |
Question: What is the number of protons in the nucleus?
Options:
A. atomic mass
B. element
C. atomic number
D. metallic number | C |
Question: What organism is at the top of the energy pyramid?
Options:
A. insects
B. primate
C. carnivore
D. herbivore | C |
Question: What structure of the heart receives oxygen-poor blood from the body, then pumps the blood into the right ventricle?
Options:
A. right ventricle
B. left atrium
C. left ventricle
D. right atrium | D |
Question: Which organelle is often compared to a post office, moving proteins and lipids to where they need to go?
Options:
A. the golgi apparatus
B. the cytoplasm
C. the cell wall
D. the nucleus | A |
Question: What takes both the shape and the volume of their container?
Options:
A. tissues
B. gases
C. solids
D. fluids | B |
Question: What is the lowest level of organization that can perform all activities required for life?
Options:
A. the cell
B. tissues
C. nucleii
D. organs | A |
Question: Where are most of the organs contained in insects?
Options:
A. thorax
B. the abdomen
C. appendages
D. head | B |
Question: The appendicular skeleton is made up of all bones of the upper and lower what?
Options:
A. digestive tract
B. limbs
C. organs
D. hemispheres | B |
Question: What can be thought of as the capacity a device has for storing charge?
Options:
A. capacitance
B. resonance
C. potential
D. velocity | A |
Question: What do electromagnetic receptors detect?
Options:
A. background radiation
B. subtle radiation
C. dangerous radiation
D. electromagnetic radiation | D |
Question: Nutrients from food are absorbed by the blood for transport around the body as part of what system?
Options:
A. digestive
B. circulatory
C. growth
D. respiratory | A |
Question: What occurs when plants release water vapor through stomata (leaf pores)?
Options:
A. transpiration
B. crystallization
C. inhalation
D. evaporation | A |
Question: The stomach mucosa’s epithelial lining consists only of surface mucus cells, which secrete a protective coat of what?
Options:
A. acidic mucus
B. alkaline mucus
C. phosphate mucus
D. bile mucus | B |
Question: A substance too big to be pumped across the cell membrane may enter or leave the cell by what method?
Options:
A. vesicle transport
B. passive transpiration
C. vesicle infusion
D. absorption | A |
Question: What is the process in which unstable nuclei become stable by emitting particles and energy and changing to different elements called?
Options:
A. radioactive decrease
B. initial decay
C. nuclear decay
D. radioactive decay | D |
Question: Most taste buds on the tongue are associated with nipple-shaped projections called what?
Options:
A. antennae
B. mucosa
C. cilia
D. papillae | D |
Question: What is the lowest energy state of the atom called?
Options:
A. base state
B. work state
C. ground state
D. active state | C |
Question: What kind of diseases involve the immune system accidentally attacking healthy body cells?
Options:
A. inflammation
B. metabolic
C. contagious diseases
D. autoimmune | D |
Question: Bacteria may divide several what an hour?
Options:
A. times
B. cells
C. days
D. hosts | A |
Question: The partial pressure of each gas in a mixture is proportional to its what?
Options:
A. lactic fraction
B. mesh fraction
C. mole fraction
D. chemical fraction | C |
Question: The combination decomposition or rearrangement of elements and compounds to form new substances is known as?
Options:
A. mineral changes
B. chemical changes
C. carbon changes
D. ionic changes | B |
Question: When is melatonin secreted?
Options:
A. all day
B. at night
C. in the afternoon
D. in the morning | B |
Question: In which phase do the chromosomes duplicate?
Options:
A. metaphase
B. interphase
C. mitosis
D. prophase | B |
Question: Which muscle is a band-like muscle that extends from the anterior superior iliac spine to the medial side?
Options:
A. soleus
B. vastus medialis
C. tibialis anterior
D. sartorius | D |
Question: Filter feeders, such as sponges, pump water into their body through what structures?
Options:
A. lungs
B. valves
C. pores
D. fibers | C |
Question: What are ionic solutes?
Options:
A. carbohydrates
B. salts
C. electrolytes
D. solvent | C |
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