Which letter in the graph indicates the point at which the population has reached carrying capacity?

A. D
B. A

C. B
D. C

How are the testes and ovaries similar? a. both produce sex cells. b. both connect internal reproductive organs to the exterior. c. both transport sex cells from their site of production. d. both store mature sex cells.

What substance acts to prevent sudden ph changes in bodily fluids?

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above