Which statements describe the Peary Land ecosystem? Select all that apply

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.

Rue or false siblings look simila rbecause they each have some traits of their parents.

How does science influence the decisions made about social, economic, and political issues?