In going from one trophic level to the next higher level in an ecological pyramid

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases

This connective tissue consists of large round densely packed cells with the nucleus pushed to one side.

Achemical that is released by an animal as a signal to other members of the same species is called a pheromone. t or f