How are human population growth and fracking related? a. the population has decreased as demand for energy resources has increased. b. the population has decreased and so has demand for energy resources. c. the population has increased as demand for energy resources has decreased. d. the population has increased and so has demand for energy resources.

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.