When was the term underground railroad first used

Name two things the mycenaeans learned from the minoans

The principle that the geoglical processes that we see today have occurred through out earths history is called

Which statement below accurately describes the carrying capacity of any ecosystem? a. it is not affected by any abiotic or biotic resources. b. it does not affect the species of an ecosystem. c. it is completely dependent upon the food supply. d. it is affected by both abiotic and biotic resources