Biology 20 Exam 1 Questions And Answers
Skeletal System Protects and supports the body's organs and provides a framework the
muscles use to cause movement. Blood cells are formed within bones. Bones store minerals.
Muscular system Allows Manipulation of the environment, locomotion and facial
...
Skeletal System Protects and supports the body's organs and provides a framework the
muscles use to cause movement. Blood cells are formed within bones. Bones store minerals.
Muscular system Allows Manipulation of the environment, locomotion and facial
expression. Maintains posture, and produces heat.
Nervous System As the fast acting control system of the body, it responds to internal and
external changes by activating appropriate muscles and glands.
Endocrine System Glands secrete hormones that regulate processes such as growth,
reproduction, and nutrient use (metabolism) by body cells.
Cardiovascular system Blood vessels transport blood, which carries oxygen, carbon
dioxide, nutrients, wastes, etc. The heart pumps blood.
Lymphatic System/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. the immune response mounts the attack against foreign substances within the body.
, Biology 20 Exam 1 Questions And Answers
Respiratory System Keeps blood constantly supplies with oxygen and removes carbon
dioxide. The gaseous exchanges occur through the walls of the air sacs of the lungs.
Digestive System Breaks down food into absorbable units that enter the blood for
distribution to body cells. Indigestible foodstuffs are eliminated as feces.
Urinary system Eliminates nitrogenous wastes from the body. Regulates water, electrolyte
and acid-base balance of the blood.
Reproductive system Male & Female. Overall function is production of offsprings. Testes
produce sperm and deliver the sperm to the female reproductive tract. Ovaries produce eggs and
female sex hormones. The remaining female structure serves as a fertilization and development
of the fetus.
Necessary Life Functions All living organisms carry out certain vital functional activities
necessary for life, including maintenance of boundaries, movement, responsiveness,digestion,
metabolism,excretion, reproduction and growth.
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