Compare and contrast the Crayfish circulation with the Earthworm. Specifically describe the direction of blood flow thr

[answerhappygod]

Compare and contrast the Crayfish circulation with
the Earthworm. Specifically describe the direction of
blood flow through the heart(s) and how it circulates to the rest
of the body.
Compare and contrast the Perch/Shark circulation with
the Frog. Name and
describe two similarities
and two differences? Explain why
these differences are significant in terms of the different animal
lifestyles.