When an environment has reached its carrying capacity for a certain
population, which of the following is true?
O Growth and Immigration rate is equal to death and emigration rate,
Growth rate is exponential.
Growth and Immigration rate is greater than death and emigration rate,
Growth and Immigration rate is less than death and emigration rate.

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.