Here is a food chain. use this food chain to answer this question. which term describes the role of fungi in this food chain? a. omnivore

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.

Along what geographical feature are most of the oil producing regions located

Ascientific idea becomes valid when it is what?