Some Endocrine Control Systems Include Both Feedback Control (Which Maintains

question 98

True/False

Some endocrine control systems include both feedback control (which maintains a constant basal level of the hormone)and neuroendocrine reflexes (which cause sudden bursts in secretion in response to a sudden increased need for the hormone).

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Definitions:

Isotactic

pertaining to polymers where all substituent groups are oriented on the same side of the polymer chain, giving specific physical properties.

Isotactic Polypropylene

A type of polypropylene where all the methyl groups are aligned on the same side of the polymer chain, leading to a high degree of crystallinity.

Atactic Poly(acrylonitrile)

A type of polyacrylonitrile polymer where the methyl side groups are randomly distributed along the polymer chain, leading to an amorphous material.

Anionic Polymerization

A type of chain growth polymerization where the reactive center is an anion, allowing for the synthesis of polymers with narrow molecular weight distribution.