2. How do your respiratory and circulatory systems attempt to maintain homeostasis during exercise?
2 answers:
I think it is D. You experience increase in breathing rate to obtain more oxygen which is delivered to cells through the bloodstream
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Class: Calcarea
Family: Phylum Porifera
Genus: Scypha/Sycon
Species: Sponge
B cause they all blend in with snow so they can survive
