Which statements are part of Darwin’s theory of evolution? Check all that apply
A) Organisms stay the same over time.
B) Organisms change over time.
C) All organisms have common ancestors.
D) Only some organisms have common ancestors.
E) Evolution occurs slowly over extended periods of time.
F) Evolution occurs rapidly over extended periods of time.

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.