Generate a sentence that answers this question: "Two parakeets, each in a separate house, each in a windowless room, may share information through".

Answer: sound can be used for communication by animals

Generate a sentence that answers this question: "Birds are a vehicle for spreading the seeds of what?".

Answer: birds are a vehicle for spreading the seeds of a plant

Generate a sentence that answers this question: "When a song is played your ears can".

Answer:
when sound reaches the ear , that sound can be heard