Ecosystems are closed environments.
TRUE
FALSE

Galaxy whose shape seems different follow no set pattern are classified as

Hummingbirds drink nectar from flowers, while robins eat plant seeds. what does this reduce?

How is the national wildlife refuge system similar to the pacific region coastal program? a. both programs are concerned with providing habitats for wildlife b. both programs are primarily concerned with preserving fish species c. both programs have set aside 150 million acres of land d. both programs are under the u. s. fish and wildlife service