What is the change in number of individuals in a population over time? a. population decrease b. population stability c. population growth d. population resistance

Ahypothesis that has been tested again and again , with similar results each time may become a law , true or false

What is the next step in muscle contraction after the actin changes shape? (apex)

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.