The deer, rabbit, grasshopper, and caterpillar are classified as the primary, or first-level, consumers in this ecosystem. What evidence from the food web supports this statement?
a) they feed on producers
b) they compete with the carnivores for food
c) they are eaten by other organisms in the food web
d) they are prey for the herbivores in the food web
Ans: a) they feed on producers
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Which of the following is a function of proteins in the plasma membrane?
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a. during the first two weeks. b. from two weeks to fifteen months. c. from infancy to ten years. d. from ages thirteen to nineteen. e. during adulthood.