Pigs have feet with toes that do not touch the ground. These are examples of
a. a vestigial structure
b. something in the process of evolving
c. homologous traits
d. a deleterious mutation
e. biological gradualism
A
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Incomplete dominance is an example of blending of phenotypes, not genotypes
Indicate whether the statement is true or false
The process that a tall tree uses to move water to the leaves at the top of the tree involves primarily
a. cohesion and evaporation. b. evaporation and pumps. c. capillary action and pumps. d. positive pressure from roots and cohesion. e. capillary action and positive pressure from roots.
The oxygen content of air at sea level is approximately
a. 21 percent. b. 78 percent. c. 0.04 percent. d. 0.96 percent. e. 100 percent.
Cortisol promotes “glucose sparing” for which organ?
a. liver b. brain c. heart d. lungs e. kidney