Which of the following is not a current theory regarding global climate change? a. Global warming will stimulate crop growth. B. Even the moderate projections on global warming will cause devastation. C. Higher levels of carbon dioxide in the atmosphere will have no effect. D. Sea levels will rise as a result of global warming.

Which scenario describes intraspecific, indirect competition? a. a peacock defends its territory against another peacock. b. lions and hyenas compete for the same prey animals. c. a male black bear eats fish in an area of a lake, so other black bears can’t. d. different species of birds fight over spilled popcorn on the ground.