The biotic elements of an ecosystem include: a. rocks and other non-living parts of a habitat. b. disturbances, such as forest fires. c. plants, such as trees and flowers. d. All of these choices are correct.

Describe a situation in which you experienced unfamiliar cultural patterns. what was going on? how did this experience make you feel? does learning more about culture make encountering cultural diversity easier? why or why not?

What is a common factor all nonprofit businesses share? they pay no income tax.they have no capital.they are national in scope.they perform charitable acts.

Which statement is a good description of a model? a) models are a description of nature based only on one or two variables. b) models are testable ideas but they are not very to most people. c) models are a description of nature that predicts more accurately than real events. d) models are an approximiation of a real system that omits all but most essential variables in a system.