fleshy, flat, appendage that protrudes in pairs from each segment of polychaetes

organism that uses resources from another species, the host

plant that is dependent on its host for survival

symbiotic relationship in which one member of the association benefits at the expense of the other

division of autonomic nervous system that regulates visceral functions during rest and digestion

gland located on the surface of the thyroid that produces parathyroid hormone

hormone produced by the parathyroid glands in response to low blood Ca2+ levels; functions to raise blood Ca2+ levels

hormone produced by the parathyroid glands in response to low blood Ca2+ levels; functions to raise blood Ca2+ levels

group of animals without true differentiated tissues

most common type of plant cell; found in the stem, root, leaf, and in fruit pulp; site of photosynthesis and starch storage

organic and inorganic material in which soils form

progeny that exhibits the same allelic combination as its parents

part of the cerebral cortex involved in processing touch and the sense of the body in space

neurodegenerative disorder that affects the control of movement

form of asexual reproduction where an egg develops into a complete individual without being fertilized