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What term describes the overall ability of an animal to survive and produce offspring?
A. change
B. fitness
C. evolution
D. abilities
Answer: | B |
Production of abnormal white blood cells occurs in what cancer, which is the most common form in children?
A. leukemia
B. Bone
C. Brain
D. Breast
Answer: | A |
How is the energy of an atomic orbital affected as the principal quantum number increases?
A. it increases
B. it decreases
C. It triples
D. It doubles
Answer: | A |
During the typical human female ovulation cycles, how many eggs are released?
A. one
B. three
C. four
D. two
Answer: | A |
Spores are the basic reproductive units of what organism?
A. tropical plants
B. yeast
C. fungi
D. mushrooms
Answer: | C |
During diastole, what happens to the elastic walls of the arteries?
A. they evolve
B. they become hardened
C. they expand
D. they snap back
Answer: | D |
Blood pressure is significantly affected by what physical force?
A. gravity
B. density
C. mass
D. volume
Answer: | A |
An electormagnet is a piece of iron inside a?
A. copper core
B. reactor
C. solenoid
D. tunnel
Answer: | C |
What term describes motion that repeats itself at regular time intervals, such as exhibited by a vibrating guitar string?
A. apparent motion
B. periodic motion
C. specific speed
D. gravitational pull
Answer: | B |
What form do biofuels take that makes them very useful?
A. crystals
B. solid
C. chemical
D. liquid
Answer: | D |
Most of food's chemical energy ultimately comes from what source?
A. plants
B. sunlight
C. air
D. minerals
Answer: | B |
The northern spotted owl and the mexican spotted owl inhabit geographically separate locations with different climates and ecosystems. the owl is an example of?
A. biodiversity
B. parallel evolution
C. allopatric speciation
D. symbiotic species
Answer: | C |
Human actions such as plowing, logging, construction and other actions contribute to what kind of erosion?
A. weathering
B. flooding
C. wind erosion
D. soil erosion
Answer: | D |
Why does the fish odour diminish when you put lemon juice over cooked fish?
A. due to neutralization
B. due to evaporation
C. due to oxidation
D. due to acidification
Answer: | A |
When additional water is added to an aqueous solution, what happens to the concentration of that solution?
A. increases
B. decreases
C. no change
D. doubles
Answer: | B |
How many chambers does a mammalian heart have?
A. five
B. three
C. one
D. four
Answer: | D |
Meaning a disease that spreads from person to person, what term is synonymous with "contagious"?
A. noncommunicable
B. harmless
C. infectious
D. benign
Answer: | C |
The common carotid artery gives rise to the external and internal carotid arteries. the external carotid artery remains superficial and gives rise to many arteries of this?
A. back
B. chest
C. stomach
D. head
Answer: | D |
What are resources that don't run out?
A. renewable resources
B. residual resources
C. orbital resources
D. general resources
Answer: | A |
Maintaining a balance inside the body or cells of organisms is known as?
A. homeostasis
B. ketosis
C. consciousness
D. equanimity
Answer: | A |
The ability to what is affected by the velocity, or speed, of the water?
A. erode
B. impede
C. hinder
D. construct
Answer: | A |
What is the process of isolating a specific gene and then making a copy of it for use in gene therapy?
A. gene treatment
B. gene cloning
C. gene copying
D. attribute cloning
Answer: | B |
The epochs of the universe are known back to very shortly after what 'explosive' event?
A. Biggest bang
B. major bang
C. Explosive bang
D. big bang
Answer: | D |
What is the term for a change in an object’s motion, which occurs whenever an object is acted upon by an unbalanced force?
A. compression
B. acceleration
C. rotation
D. inclination
Answer: | B |
All metabolic functions carried out by a prokaryote take place in the plasma membrane or where else?
A. extracellular
B. cytosol
C. mitochondrial
D. Shell
Answer: | B |
How does burning matter affect its mass?
A. the mass decreases
B. the mass remains the same
C. the mass quadruples
D. the mass increases
Answer: | B |
What type of stratified deposit is formed where lakes are covered by ice in the winter?
A. telomeres
B. tangles
C. glacier
D. varves
Answer: | D |
Where do greenhouse gases trap heat?
A. space
B. ground
C. altitude
D. atmosphere
Answer: | D |
The hamstrings flex the leg, whereas the quadriceps femoris have what effect?
A. contract
B. extend
C. stabilize
D. no effect
Answer: | B |
Many ceramics are composed of what, which are salts containing anions composed of silicon and oxygen?
A. vinylates
B. crystals
C. silicates
D. soils
Answer: | C |
Attaching strips of neutral metals that are higher in the activity series can protect a structure from what?
A. weathering
B. deoxidation
C. diffusion
D. corrosion
Answer: | D |
Weight is a measure of what force pulling down on an object?
A. distortion
B. gravity
C. light
D. motion
Answer: | B |
What organ absorbs about 90 percent of the water you ingest?
A. large intestine
B. skin
C. small intestine
D. lungs
Answer: | C |
In drosophila, gradients of morphogens encoded by maternal effect genes determine what?
A. body mass
B. cell mass
C. body axes
D. cells axes
Answer: | C |
What features of a salamander's skin help protect itself from predators ?
A. camouflaged and thin
B. slimy and camouflaged
C. thick and impenetrable
D. brightly colored and poisonous
Answer: | D |
Precipitation maps show the amount of what in different areas?
A. rainfall
B. heat
C. geographical variety
D. population
Answer: | A |
What is a germ cell that divides into gametocytes during gametogenesis?
A. cocklebur
B. gonads
C. gametogonium
D. pollenation
Answer: | C |
The saguaro doesn't have any leaves to lose water by which process?
A. evaporation
B. propagation
C. respiration
D. transpiration
Answer: | D |
What is the most important source of energy on earth?
A. moon
B. water
C. the earth's core
D. sun
Answer: | D |
What do cyclotrons use to cause particles to move in circular orbits?
A. occurs field
B. mixed field
C. magnetic field
D. layers field
Answer: | C |
An example of a variable relating to the ramp is its what?
A. mass
B. steepness
C. weight
D. color
Answer: | B |
Deep within the earth what force is so great that a rock behaves like a stretched rubber band?
A. momentum
B. magnetism
C. volcanoes
D. pressure
Answer: | D |
What shape is the colony of a volvox cell?
A. hollow ball shaped
B. pyramid
C. coil-shaped
D. tubular
Answer: | A |
What do puffer fish produce to protect itself?
A. hormones
B. enzymes
C. venom
D. teeth
Answer: | C |
What are polymers composed of many sugar building blocks called?
A. monosaccarides
B. polysaccharides
C. monomers
D. hydrocarbons
Answer: | B |
Most gas molecules in the atmosphere are pulled close to earth’s surface by what force?
A. light
B. traction
C. gravity
D. weight
Answer: | C |
Coral reefs and tropical rainforests are ecosystems known for what, contributing greatly to the species in existence on earth?
A. commensalism
B. spontaneous mutation
C. biodiversity
D. mass migrations
Answer: | C |
Gymnosperms and angiosperms are types of _________ seed plants.
A. modern
B. genetic
C. extinct
D. heritage
Answer: | A |
Not getting enough calcium may cause what health problem?
A. arthritis
B. blindness
C. osteoporosis
D. diabetes
Answer: | C |
What is the sequence of elementary steps that together comprise an entire chemical reaction called?
A. mechanical mechanism
B. basic reaction
C. reaction circle
D. reaction mechanism
Answer: | D |
What is the clear, curved structure that works with the cornea to help focus light at the back of the eye?
A. pupil
B. retina
C. iris
D. lens
Answer: | D |
What is the color of the powder of a mineral called?
A. dye
B. hue
C. pigment
D. streak
Answer: | D |
What part of the plant anchors it into the soil?
A. leaves
B. buds
C. roots
D. stems
Answer: | C |
Evolution happens because of what?
A. natural selection
B. natural resources
C. natural process
D. natural change
Answer: | A |
The nephron is the functional unit of what pair of organs?
A. eyes
B. lungs
C. kidneys
D. ribs
Answer: | C |
Nonshivering thermogenesis, which involves the breakdown of brown adipose tissue, is a special methods newborns have for what purpose?
A. harnessing heat
B. generating heat
C. moving heat
D. losing heat
Answer: | B |
What do you call a predator species that affects other species' populations when its own population size changes?
A. paradox species
B. symbiotic species
C. keystone species
D. complement species
Answer: | C |
What do you call the electrons in the outer energy level of an atom that are involved in chemical bonds?
A. transitions electrons
B. valence electrons
C. force electrons
D. helium electrons
Answer: | B |
How many valence electrons do neutral phosphorus atoms have?
A. nine
B. three
C. five
D. four
Answer: | C |
What impact does photosynthesis have on the direction of electron flow?
A. reverses it
B. cycles it
C. cools it
D. repeats it
Answer: | A |
In an experiment, what is kept constant so they will not affect the results, including affecting the dependent variable?
A. similar controls
B. atmospheric controls
C. educated controls
D. experimental controls
Answer: | D |
The rate of evaporation depends only on the surface area of the liquid and is essentially constant. the rate of condensation depends on the number of molecules in the vapor phase and increases steadily until it equals the rate of this?
A. absorption
B. accumulation
C. condensation
D. evaporation
Answer: | D |
What are the two main types of diabetes?
A. type a, b
B. type 3, 4
C. type 0, 1
D. type 1, type 2
Answer: | D |
What function does the longer flagellae perform in dinoflagellates?
A. propels
B. attacks
C. defends
D. grasps
Answer: | A |
What are the three stages of water?
A. vapor, earth, internal
B. ice, rock, sky
C. liquid, underground, frozen
D. ice, liquid, vapor
Answer: | D |
What is the first stage of cellular respiration?
A. breath
B. glycolysis
C. photosynthesis
D. defacation
Answer: | B |
Roundworms are intervertebrates that belong to which phylum?
A. Gordiacea
B. nematoda
C. amoebozoa
D. annelida
Answer: | B |
The development of multi-cellular organisms begins from a single-celled zygote, which undergoes rapid cell division to form this?
A. eukaryote
B. gametophyte
C. blastula
D. multicell
Answer: | C |
While components of a mixture can be separated by physical means, the components of a pure substance can only be broken down through what means?
A. chemical
B. mechanical
C. thermal
D. radiation
Answer: | A |
What is it called when pollen from one plant fertilizes another plant of the same species?
A. cross - vegetation
B. cross-pollination
C. cross-typing
D. cross-breeding
Answer: | B |
Calcium hydroxide and calcium carbonate are effective in neutralizing the effects of what on lakes?
A. acid rain
B. ozone rain
C. dioxide rain
D. oil rain
Answer: | A |
Most of these bacterial illnesses can be prevented with proper cooking of food and washing what?
A. teeth
B. vegetables
C. hands
D. hair
Answer: | C |
If something is in the state of matter where it has both a definite shape and volume, then what state of matter is it in?
A. solid
B. liquid
C. gas
D. plasma
Answer: | A |
What is the region known as the myelencephalon in the embryonic brain?
A. Telencephalon
B. medulla
C. Diencephalon
D. Mesencephalon
Answer: | B |
What involves the reaction of a hydrocarbon with oxygen gas to produce water and carbon dioxide?
A. combustion reactions
B. chemical reactions
C. material reactions
D. hydrogen reactions
Answer: | A |
What law states that matter cannot be created or destroyed?
A. Murphy's Law
B. law of inertia
C. construct of energy
D. conservation of energy
Answer: | D |
The air bubbles resulting from cavitation expand and block water channels of the what?
A. respiration
B. ectoderm
C. heart
D. xylem
Answer: | D |
Which gender typically experiences growth spurts first?
A. male
B. no difference
C. female
D. transgender
Answer: | C |
What are the only organisms that can decompose wood?
A. fossil
B. fungi
C. protists
D. bacteria
Answer: | B |
What part of the plant do nutrients enter?
A. the flower
B. the roots
C. the stem
D. the seeds
Answer: | B |
What is a solid particle that is indestructible?
A. atom
B. neutron
C. nucleus
D. quark
Answer: | A |
Activated macrophages and neutrophils discharge what that signals molecules that enhance an immune response?
A. alkaloids
B. nucelotides
C. cytokines
D. pathogens
Answer: | C |
The extracellular fluid is in contact with the axon membrane only at what location?
A. dendrites
B. the nodes
C. synapses
D. Sensory Receptors
Answer: | B |
Muscarinic receptors can cause both depolarization or hyperpolarization depending on the what?
A. subtype
B. strain
C. phenotype
D. gravity
Answer: | A |
What does rising air do when it reaches the top of the troposphere?
A. warms
B. heats
C. cools
D. dries
Answer: | C |
The what is the number of wave cycles that pass a specified point in space in a specified amount of time?
A. vibrancy
B. density
C. frequency
D. intensity
Answer: | C |
Intermediate filaments tend to give the structural stability to what?
A. proteins
B. muscles
C. nerves
D. cells
Answer: | D |
What is the process in which a layer of a second metal is deposited on the metal electrode that acts as the cathode during electrolysis?
A. casting
B. electroplating
C. cold fusion
D. distillation
Answer: | B |
What is the term for diseases in which blood does not clot normally?
A. diabetes
B. lymphoma
C. hemophilia
D. arthritis
Answer: | C |
Cardiomyocytes are striated muscle cells found where?
A. in the diaphram
B. in the intestines
C. in lung tissue
D. in cardiac tissue
Answer: | D |
Which protein, that stores oxygen in muscle cells, has been purified from a number of organisms?
A. iodine
B. potassium
C. myoglobin
D. melanin
Answer: | C |
A membrane has what property if it can control what molecules or ions enter or leave the cell?
A. impermeability
B. indiscreet permeability
C. selective permeability
D. susceptible permeability
Answer: | C |
What is the term for the amount of space taken up by an object?
A. weight
B. size
C. volume
D. mass
Answer: | C |
What is the most common form of cancer in women?
A. melanoma
B. breast cancer
C. ovarian cancer
D. lung cancer
Answer: | B |
Exposure to what is the most common cause of hearing loss?
A. angry sounds
B. outside sounds
C. Guitar
D. loud sounds
Answer: | D |
What basic plant structures generally have large surface areas and high surface-to-volume ratios?
A. stems
B. flowers
C. roots
D. leaves
Answer: | D |
What is the main component of phytoplankton?
A. amoebas
B. algae
C. cells
D. seawater
Answer: | B |
Metabolic enzymes catalyze catabolic reactions that break down what?
A. lipids
B. impurities
C. carbohydrates
D. proteins
Answer: | C |
Ponds and lakes are examples of what kind of biome?
A. standing freshwater biome
B. standing marine biome
C. standing liquid biome
D. standing lake biome
Answer: | A |
The skeletons of humans and horses are examples of what?
A. pliant skeletons
B. endoskeletons
C. hydroskeleton
D. exoskeletons
Answer: | B |
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