circulatory system . haemolymph, a copper -based blood analogue, is propelled by a series of hearts into the body cavity where it comes in direct contact with the tissues. arthropods are protostomes. there is a coelom (body cavity), but it is reduced to a tiny cavity around the reproductive and excretory organs...
internal organs such as heart, brain, and liver muscle cardiac muscle, smooth muscle, and skeletal muscle. skeletal muscles contract to produce movement in your body and perform other essential duties bone protect the body and provides structure connective tissue tendons and ligaments that connect the...
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