An earthworm receives support and shape from its fluid-filled cavity. it has an endoskeleton an exoskeleton a hydroskeleton no skeleton

A work has no skeleton, which is why it can bend in all different directions, but the main reason i know this, is cause if you pinch a work between your thumb and forefinger, it will break, and there is nothing on the inside of the worm that indicates there is a skeleton

Salivary gland is mouth hormones

Hello there.identify what structures in a skeletal muscle will shorten in length during contraction of the muscle. choose all that apply. (0.5 pts)answers: muscle fiber