1) Name two animal phyla with closed circulatory system? 2)What are the restraints of the arthropod exoskeleton and how

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1) Name two animal phyla with closed circulatory system?
2)What are the restraints of the arthropod exoskeleton and howhave arthropods overcome these restraints?
3) What is another term for the large intestine and whatprocesses occur in it? What role does it play for absorption?
4) If periplaneta female cockroaches have a preference formating with large males rather than small ones, which term wouldyou use? a) genetic drift b) inbreeding c) non-random matingd) random mating e) artificial selection
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