Answer:
The general shape of the echinoderm may be that of a star with arms extended from a central disk or with branched and feathery arms extended from a body often attached to a stalk, or it may be round to cylindrical.
I think D. are made of rigid cartlage
Answer: D. Increase fluid intake accordingly
Explanation:
The high fiber diet will cause more absorption of water. Thus the body will require more water and the tendency for drinking more water will enhance in the body. This is necessary for solubilization of the fibers and digestion so that these can be excreted out from the body smoothly with other food components. Otherwise, if one do not drink water then conditions of gas and constipation will develop.
The arteries carry oxygenated blood away from heart and then re-takes it back to your system
