All of the trees in an ecosystem are examples the in an ecosystem. Mammals

Abiotic factors

Heterotrophs

Biotic Factors

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes

What is the importance of having the us forest service, the bureau of land management, the us fish and wildlife service, and the national park service? to manage land resources for conservation and the development of natural resources to manage land resources for conservation and the development of urban areas to preserve historical landmarks and manage the development of urban areas to preserve historical landmarks and manage the development of rural areas