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Eliminates nitrogen-containing
wastes from the body; regulates
water, electrolyte, and acid-base
balance of the blood.
Eliminates nitrogen-containing wastes from the body; regulates water, electrolyte, and acid-base balance of the blood.
Urinary system
Breaks food down into absorbable
nutrients that enter the blood for
distribution to body cells; indigestible
foodstuffs are eliminated as feces.
Breaks food down into absorbable nutrients that enter the blood for distribution to body cells; indigestible foodstuffs are eliminated as feces.
Digestive system
Keeps blood constantly supplied
with oxygen and removes carbon
dioxide; the gaseous exchanges
occur through the walls of the air
sacs of the lungs.
Keeps blood constantly supplied with oxygen and removes carbon dioxide; the gaseous exchanges occur through the walls of the air sacs of the lungs.
Respiratory system
Picks up fluid leaked from blood
vessels and returns it to blood;
disposes of debris in the lymphatic
stream; houses white blood cells
involved in immunity.
Picks up fluid leaked from blood vessels and returns it to blood; disposes of debris in the lymphatic stream; houses white blood cells involved in immunity.
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Allows manipulation of the
environment, locomotion, and facial
expression; maintains posture;
produces heat.
Allows manipulation of the environment, locomotion, and facial expression; maintains posture; produces heat.
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Blood vessels transport blood, which
carries oxygen, nutrients, hormones,
carbon dioxide, wastes, etc.; the heart
pumps blood.
Blood vessels transport blood, which carries oxygen, nutrients, hormones, carbon dioxide, wastes, etc.; the heart pumps blood.
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Glands secrete hormones that
regulate processes such as growth,
reproduction, and nutrient use by
body cells.
Glands secrete hormones that regulate processes such as growth, reproduction, and nutrient use by body cells.
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Fast-acting control system of the
body; responds to internal and
external changes by activating
appropriate muscles and glands.
Fast-acting control system of the body; responds to internal and external changes by activating appropriate muscles and glands.
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