What is the most important producer in both freshwater and marine ecosystems?

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.

The federal crescent is shaped like what letter

Learn more about these three critical analysis theories: guide to new historicism and cultural studies guide to feminist criticism guide to psychoanalytic criticism re-read "the boarded window," by ambrose bierce. answer the three essential questions for each critical analysis theory in complete sentences using examples from the text to support your answer.