Pathogens are a. diseases that predispose people to stress. b. stressors. c. disease-causing organisms. d. factors that may eliminate stress.

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

In what for do plants utilize nitrogen? why do they need nitrogen?

Which must be kept in mind when determining if an explanation is correct? check all that apply.which must be kept in mind when determining if an explanation is correct? check all that apply.