In dogs, what characteristic is a visual indicator of potential deafness? why?

Explain how the political influence of african americans leaders became weaker.

The pressurized plants and fungi mentioned in the video have some surprising similarities. what differences would you expect them to have?

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.