Stimuli for the Secretion of Hormones Include Changes in Plasma

question 92

True/False

Stimuli for the secretion of hormones include changes in plasma concentrations of ions,nutrients,and other hormones.

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Definitions:

Tube-Within-a-Tube

A design characteristic of the body plans of many animals, where the outer tube represents the body wall, and the inner tube represents the alimentary canal or gut.

Flukes

Parasitic flatworms that infect the liver, lungs, and other organs of their hosts, with life cycles involving one or more intermediate hosts.

Oral Sucker

A muscular structure found in some animals, such as parasitic worms, used for attachment to or ingestion of food from hosts or surfaces.

Alimentary Canal

A series of hollow organs joined in a long, twisting tube from the mouth to the anus, through which food is digested and nutrients are absorbed.