question stringlengths 68 502 | answer stringclasses 4
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|---|---|
Question: During adolescence, what causes most of the changes associated with puberty?
Options:
A. methane
B. nicotine
C. estrogen
D. testosterone | D |
Question: What is essential for cellular respiration for all aerobic organisms?
Options:
A. carbon
B. water
C. nitrogen
D. oxygen | D |
Question: Breeding in birds occurs through an internal type of what process?
Options:
A. segmentation
B. stimulation
C. fertilization
D. sedimentation | C |
Question: In an endothermic reaction, what is absorbed by the reaction?
Options:
A. food
B. atoms
C. fuel
D. energy | D |
Question: What scientist and monk is best known for his experiments with pea plants?
Options:
A. steiner mendel
B. aristotle
C. charles darwin
D. gregor mendel | D |
Question: What are structures that protect the coast like barrier islands called?
Options:
A. breakwaters
B. dunes
C. fortresses
D. domes | A |
Question: What leads to multiple copies of a chromosomal region?
Options:
A. duplications (or amplifications )
B. minimilizations
C. gene modification
D. subtractions | A |
Question: The larger surface area of leaves allows them to capture more what?
Options:
A. molecules
B. chlorophyll
C. sunlight
D. pollen | C |
Question: What is connected to, and dependent on, the gametophyte?
Options:
A. the zygote
B. the sporophyte
C. the sperm
D. the chromosomes | B |
Question: After passing through capillaries and being filtered, clean blood leaves what organ through a vein?
Options:
A. liver
B. pancreas
C. heart
D. kidney | D |
Question: What kind of medical intervention seeks to eradicate diseases like polio and measles?
Options:
A. nutrition
B. surgical intervention
C. vaccination
D. malnutrition | C |
Question: The ostrich, kiwi, rhea, cassowary, and moa are examples of what kind of birds?
Options:
A. predators
B. flightless
C. raptors
D. prehistoric | B |
Question: What occurs when individuals of different species strive for a limited resource in the same area?
Options:
A. interspecific competition
B. vegetal competition
C. asexual competition
D. intraspecific competition | A |
Question: Most fungi reproduce asexually by producing what?
Options:
A. toxins
B. seeds
C. ions
D. spores | D |
Question: Alchemists, as early as the eighth century, knew nitric acid as aqua fortis, which means?
Options:
A. strong water
B. clean water
C. applied water
D. isolated water | A |
Question: Particles of sand and what other substance are carried by longshore drift?
Options:
A. rock
B. magma
C. soil
D. bone | A |
Question: Most reptiles reproduce sexually and have what type of fertilization?
Options:
A. additional
B. external
C. internal
D. mechanical | C |
Question: What is type of substance is formed when water vapor condenses or when ice melts?
Options:
A. liquid water
B. gaseous water
C. chemical water
D. toxic water | A |
Question: What occur because solid lithosphere travels on a round planet?
Options:
A. aeration earthquakes
B. ejecta earthquakes
C. volcanos
D. intraplate earthquakes | D |
Question: What is the unit of evolution?
Options:
A. species
B. population
C. biome
D. community | B |
Question: The boiling points of liquid also correlate to the strength of which forces?
Options:
A. centrifugal
B. supramolecular
C. intermolecular
D. gravitational | C |
Question: Vitamin d is made in the skin when it is exposed to what?
Options:
A. sunlight
B. darkness
C. dirt
D. water | A |
Question: Of the three basic types of radioactive emissions, what particle is the most penetrating?
Options:
A. alpha
B. neutron
C. beta
D. gamma | D |
Question: Which ocean zone is the narrow strip along a coastline that is covered by water at high tide and exposed to air at low tide?
Options:
A. deep zone
B. miniscule zone
C. calcareous zone
D. intertidal zone | D |
Question: Elongation is the addition of what to the mrna strand?
Options:
A. glycine
B. filaments
C. nucleotides
D. codons | C |
Question: What is the distance north or south of the equator called?
Options:
A. inclination
B. longitude
C. Prime Meridian
D. latitude | D |
Question: The force exerted by a diving board is conservative, provided the internal friction is this?
Options:
A. static
B. intrinsic
C. negligible
D. significant | C |
Question: Along with other elements, most ores are made of what?
Options:
A. crystals
B. metal
C. sodium
D. coal | B |
Question: The bottoms—but not the tops—of the wave slow down because of what?
Options:
A. friction
B. vibration
C. temperature
D. size | A |
Question: Molecular geometry is the three-dimensional arrangement of atoms in a what?
Options:
A. DNA
B. molecule
C. genes
D. nucleus | B |
Question: What mineral is used to produce glass?
Options:
A. pyrite
B. feldspar
C. quartz
D. lead | C |
Question: What is caused by atoms or ions when they share or transfer valance electrons?
Options:
A. gain of charge
B. force of attraction
C. force of repulsion
D. loss of charge | B |
Question: Due to the time it takes for light to reach us, galaxies at the edge of the universe are distant in terms of space and what else?
Options:
A. gravity
B. energy
C. time
D. temperature | C |
Question: Some membrane proteins that actively transport ions contribute to what?
Options:
A. organism potential
B. protein potential
C. cellular potential
D. membrane potential | D |
Question: In which human organ do the juveniles develop into sexually mature adults?
Options:
A. tissues
B. liver
C. muscles
D. intestines | D |
Question: Both sexes of sockeye salmon turn red with green heads just prior to what?
Options:
A. spawning
B. feeding
C. migrating
D. dying | A |
Question: While the numerical aperture can be used to compare resolutions of various objectives, it does not indicate how far the lens could be from the what?
Options:
A. microscope
B. focal point
C. diameter
D. specimen | D |
Question: Energy from the sun has a wide range of wavelengths.what is the total range of energy called?
Options:
A. thermal spectrum
B. heat spectrum
C. electromagnetic spectrum
D. light spectrum | C |
Question: When something loses electrons, it must also?
Options:
A. gain electrons
B. slow down
C. gain protons
D. reduce protons | A |
Question: Water and chemical elements that organisms need keep recycling through biogeochemical what?
Options:
A. cycles
B. effects
C. mutations
D. levels | A |
Question: What is the most abundant biochemical compound, making up the cell walls of plants?
Options:
A. cytoplasm
B. magnesium
C. mitochondria
D. cellulose | D |
Question: What organisms use cilia, pseudopods, or flagella to move?
Options:
A. protists
B. arthropods
C. prokaryotes
D. bacteria | A |
Question: During which phase do sister chromatids separate and the centromeres divide?
Options:
A. cell phase
B. anaphase
C. passivation
D. gap cycle | B |
Question: What term describes a type of redox reaction in which the same substance is both oxidized and reduced?
Options:
A. misappropriation
B. interposition
C. disproportion
D. disapprobation | C |
Question: Each organism inherits one of what item for each gene from each parent?
Options:
A. allele
B. molecule
C. cell
D. phenotype | A |
Question: What term is used to refer to the external female reproductive structures collectively?
Options:
A. uterus
B. vagina
C. vulva
D. cervix | C |
Question: Which state of matter has the lowest density?
Options:
A. gases
B. fluids
C. liquids
D. solids | A |
Question: Skeletal, cardiac, and smooth are the three types of what cells and possess morphologies correlated with their functions?
Options:
A. cartilage tissue
B. organ
C. bone
D. muscle | D |
Question: What do glands in the skin produce to cool down the body?
Options:
A. lactic acid
B. sweat
C. mucus
D. saliva | B |
Question: The only obvious difference between boys and girls at birth is what type of organs?
Options:
A. digestive
B. respiratory
C. reproductive
D. nervous | C |
Question: Mammals have a number of kinds of thermoreceptors, each specific for a particular what?
Options:
A. electrical range
B. oxygen range
C. temperature range
D. weight range | C |
Question: With a shape that specially suits its function of sending nerve signals to other cells, the human nerve cell is an example of what?
Options:
A. specialization
B. adaptation
C. maturation
D. evolution | A |
Question: What is defined as the mass per unit volume of a substance?
Options:
A. diameter
B. density
C. weight
D. height | B |
Question: What reaction means, literally, “splitting with water"?
Options:
A. hydroxis
B. hydrolysis
C. fission
D. aqueous | B |
Question: Approximately how much larger is the radius of an atom than that of its nucleus?
Options:
A. 100 times
B. 1000 times
C. 1 times
D. 10 times | D |
Question: What can be worn to protect hands and skin from harm?
Options:
A. filters
B. masks
C. gloves
D. splints | C |
Question: What type of movements are produced when the angle between the bones of a joint changes?
Options:
A. angular
B. circular
C. oblong
D. microscopic | A |
Question: What senses the movement of liquid in ear canals?
Options:
A. hair cells
B. Ear Drum
C. muscle cells
D. Brain Cells | A |
Question: What part of the brain regulates certain hormones associated with reproduction during breeding seasons?
Options:
A. thalamus
B. frontal lobe
C. hippocampus
D. hypothalamus | D |
Question: What is any nonmetallic, inorganic solid that is strong enough for use in structural applications called?
Options:
A. tissue
B. metallic
C. ceramic
D. glass | C |
Question: What is the outer layer of the sun made up of?
Options:
A. plasma
B. gas
C. nitrogen
D. oxygen | A |
Question: Viruses may damage or kill cells by causing the release of hydrolytic enzymes from where?
Options:
A. capillaries
B. lipids
C. lysosomes
D. glands | C |
Question: Species that have diverged from their common ancestors have greater differences in what?
Options:
A. dna sequence
B. cell structure
C. immunology
D. life span | A |
Question: In a fuel cell, energy is not stored; electrical energy is provided by what?
Options:
A. consumption reaction
B. fusion reaction
C. carbon reaction
D. chemical reaction | D |
Question: What substance comes toward earth's crust through mantle plumes?
Options:
A. water
B. rocks
C. magma
D. gas | C |
Question: A plant is composed of two main types of tissue: meristematic tissue and what other kind of tissue?
Options:
A. synovial tissue
B. nonvascular tissue
C. permanent tissue
D. muscle tissue | C |
Question: The smallest and lightest alcohols (methanol, ethanol, propanol) are completely soluble in?
Options:
A. water
B. oil
C. gasoline
D. argon | A |
Question: In which stage do chromosomes line up one on top of each other along the middle of the cell, similar to how they line up in mitosis?
Options:
A. cyclohexane ii
B. hectase ii
C. chromosome ii
D. metaphase ii | D |
Question: If the frequency of the electromagnetic wave is the same as the natural frequencies of the system, the transfer of what is much more efficient?
Options:
A. sound
B. light
C. heat
D. energy | D |
Question: When are nutrients absorbed into the body?
Options:
A. before digestion
B. after excretion
C. during digestion
D. after digestion | C |
Question: What happens to the length of the days in the fall?
Options:
A. they stay the same
B. they get longer
C. they change randomly
D. they get shorter | D |
Question: Of the nine classes of vertebrates, how many are fish?
Options:
A. five
B. three
C. one
D. four | A |
Question: After fertilization is complete, no other sperm can enter. the fertilized ovule forms the seed, whereas the tissues of the ovary become this?
Options:
A. fruit
B. wheat
C. plant
D. vegetables | A |
Question: What is a fluid-filled body cavity that is completely enclosed by mesoderm called?
Options:
A. pseudocoelom
B. choroid
C. coelom
D. hymenium | C |
Question: Which is the least massive outer planet?
Options:
A. jupiter
B. mars
C. uranus
D. venus | C |
Question: The nervous system is characterized by electrical signals that are sent from one area to another. whether those areas are close or very far apart, the signal must travel along this?
Options:
A. axon
B. hairs
C. axial
D. tendons | A |
Question: What occurs when light reflects off a very smooth surface and forms a clear image?
Options:
A. projection
B. absorption
C. refraction
D. regular reflection | D |
Question: The head of the sperm contains what, which holds the chromosomes?
Options:
A. eggs
B. fiber
C. nucleus
D. nerve cells | C |
Question: What system is responsible for defending your body against sickness?
Options:
A. immune system
B. nervous system
C. circulatory system
D. digestion system | A |
Question: What effect occurs when a few individuals start, or found, a new population?
Options:
A. founder
B. pioneer
C. convergent
D. divergent | A |
Question: Each kidney is supplied by a renal artery and what else?
Options:
A. brain vein
B. renal vein
C. spinal cord
D. coronary artery | B |
Question: What cell structures capture light energy from the sun and use it with water and carbon dioxide to produce sugars for food?
Options:
A. nuclei
B. fibroblasts
C. chloroplasts
D. ribosomes | C |
Question: What is released when catabolic pathways break down complex molecules?
Options:
A. energy
B. oxygen
C. hydrogen
D. food | A |
Question: Mass and volume are examples of what kind of properties?
Options:
A. exclusive properties
B. extensive properties
C. varied properties
D. dynamic properties | B |
Question: What technique is used by insects and birds to find food, mates, and safety from predators?
Options:
A. playing
B. sleeping
C. flying
D. mating | C |
Question: What property of food is determined by burning the food and measuring the heat released?
Options:
A. nutrients
B. calories
C. acidity
D. additives | B |
Question: What simple machine works with a wheel and axle in a wheelbarrow?
Options:
A. pulley
B. hammer
C. blade
D. lever | D |
Question: What type of joint has the greatest range of motion?
Options:
A. Gliding
B. ball-and-socket
C. Pivot
D. Hinge | B |
Question: What is the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration?
Options:
A. diffusion
B. condensation
C. absorption
D. secretion | A |
Question: Light-weight air-filled bones and a large four-chambered heart helps a bird do what?
Options:
A. swim
B. fly
C. digest
D. run | B |
Question: The myod protein deserves its designation as a master regulatory what?
Options:
A. enzyme
B. gene
C. protein
D. hormone | B |
Question: When flagellated sperm must swim to the egg, sexual reproduction requires the presence of what substance?
Options:
A. air
B. sunshine
C. water
D. nitrogen | C |
Question: What consists of these five stages: prophase, prometaphase, metaphase, anaphase, and telophase?
Options:
A. evolution
B. mitosis
C. meiosis
D. germination | B |
Question: What is the name of the muscle at the end of the esophagus?
Options:
A. intestine
B. neck
C. sphincter
D. throat | C |
Question: What do you call the high and low points of transverse waves?
Options:
A. echos and troughs
B. crests and troughs
C. waves and troughs
D. bands and troughs | B |
Question: For each initial glucose molecules, two pyruvate molecules will enter where?
Options:
A. Golgi apparatus
B. the plasma
C. the mitochondria
D. the nucleus | C |
Question: Through which artery does blood enter the kidneys?
Options:
A. renal artery
B. thoracic artery
C. jugular
D. cerebral artery | A |
Question: Where do radio waves lie on the electromagnetic spectrum?
Options:
A. far right
B. middle
C. top
D. far left | D |
Question: What links the trophic levels from producers to top carnivores?
Options:
A. environments
B. food chains
C. ecosystems
D. fuel chains | B |
Question: The waste of cows releases a lot of which type of gas?
Options:
A. methane
B. oxygen
C. sulphur
D. carbon dioxide | A |
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