In a pond, the primary producer's Spirogyra, an algae; the primary consumer is Daphnia a crustacean; the secondary consumer is the bluegill fish; and the tertiary consumer is smallmouth bass.   What could be expected if the Daphnia were killed by pesticides?

A. The Spirogyra population will die.

B. The bluegills will increase.

C. The Daphnia will eat something else.

D. The smallmouth bass will die.

Sarah and john are having a discussion on genetic diversity. sarah believes that it happen over a long period of time. john it happens immediately. who is correct? a. sarah is correct because genetic diversity occurs over a long period of time. b. john is correct because genetic diversity occurs immediately. c. both are correct because genetic variation can occur or long period of time. d. neither are correct because genetic diversity occurs over any period of time

Which of the following describes what an activator an enhancer are

Which star has the highest apparent magnitude?