Diversity among members of a species is important because diversity A ensures high levels of competition.
B ensures high levels of competition.

C increases the available ecosystem resources.
D increases the available ecosystem resources.

What evidence supports the law of conservation of energy? a) mechanical energy is converted to chemical energy during photosynthesis. b) oxygen is made from the breakdown of carbon dioxide during photosynthesis. c)energy is absorbed by chlorophyll and becomes chemical energy during photosynthesis. d)the sun gives off light energy that is absorbed by plants.

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?