__________ is a process that _________ genetic variability, and ___________ is a process that ____________ genetic variability.
Fill in the blank(s) with the appropriate word(s).
Answer: Natural selection, decreases, mutation, increases
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Macromolecules are broken down to monomers in ___
A. dehydration reactions. B. denaturation reactions. C. hydrolysis reactions. D. anabolic reactions.
Beginning with the heart, which is the correct order of blood flow, as represented by steps 1-5 in the flow chart below?
a. capillaries, venules, veins, arteries, arterioles b. arterioles, arteries, venules, veins, capillaries c. arteries, arterioles, capillaries, venules, veins d. veins, venules, capillaries, arterioles, arteries e. arteries, veins, arterioles, capillaries, venules
What are the arrows pointing to in the accompanying figure?
a. double ionic bonds b. single ionic bonds
c. double covalent bonds d. single covalent bonds e. hydrogen bonds
The movement of auxin downward from its site of production is referred to as:
a. gravitropism. b. apical dominance. c. nonpolar transport. d. polar transport. e. turgor movement.