15. Compare and contrast food webs based on photosynthesis and chemosynthesis.

well al you have to do to get your answer is to use gooegle and look up the things about  one of them and then compare them both and see what you get

Hope this helped :)

Explanation:

b is the best answer for this question.

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus