All of the alleles of all of the genes of a
population make up the
a. species richness.
b. species abundance.
c. genome.
d. gene pool.
e. none of these
D
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Which of the following is a lipid-derived hormone?
a. thyroxine b. human growth hormone c. estradiol d. insulin
Explain why only 5 to 30% of the energy contained in a particular trophic level may be passed to the next trophic level
What will be an ideal response?
Which of the following sub-disciplines of
biology focuses on understanding the entire genetic composition of organisms?
a. evolutionary biology b. molecular biology c. genomics d. comparative anatomy e. embryology
All of the following are advantages of gas exchange in air, as compared to gas exchange in water,
except:a. air is less dense than water. b. air contains a higher concentration of oxygen. c. less energy is needed to move air over a gas exchange surface. d. oxygen diffuses more slowly through air than water. e. air is less viscous than water.