Many children are born with tendency to make babbling sounds but few adults make these sounds explain this change in innate behavior

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.

Many humans consume both plants and animals. these humans are considered to be which of the following? herbivores carnivores omnivores

The variation among individuals, on which natural selection acts