If allele 'a' is favored, or selected for, over allele 'A,'
A. 'A' will increase in frequency and 'a' will decrease in frequency.
B. both alleles will increase in frequency.
C. 'a' will increase in frequency and 'A' will decrease in frequency.
D. the frequencies of both alleles will remain the same.
C. 'a' will increase in frequency and 'A' will decrease in frequency.
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How do muscles produce the force that results in movement?
A. By activating neurons B. By shortening C. By responding to hormones D. By elongating
If a flagellum is analogous to the cell, which of the following is analogous to the animal body?
a. a muscle system b. a nervous system c. a reproductive system d. a digestive system
The light-capturing events of photosynthesis involve
A. the stroma. B. mitochondria C. cytoplasm. D. chlorophyll.
The best definition of osmotic pressure is
A) The movement of solute molecules from a higher to a lower concentration. B) The force with which a solvent moves across a semipermeable membrane from a higher to a lower concentration. C) The movement of a substance across a semipermeable membrane from a higher to a lower concentration. D) The active transport of a substance out of a cell to maintain equilibrium. E) The movement of solute molecules from a lower to a higher concentration across a semipermeable membrane.