Bio 201 Rio Salado Exam 1 Questions and
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Explain the principle of complementarity.
Ans: Anatomy and physiology are inseparable because function
always reflects structure examples.) bones support and protect
body organs because they contain hard mineral deposits a nd,
blood flows in one direction through the heart because the
heart has valves that prevent back flow.
Levels of structural organization (in order of increasing complexity)
Ans: 1) Chemical Level- At this level atoms, tiny building blocks
of matter combine to form molecules such as water and
proteins.
2) Cellular Level- All cells have some common functions, but
individual cells vary widely in size and shape, reflecting their
unique functions in the body.
3) Tissue Level- Tissues are groups of similar cells that have a
common function
4) Organ Level- Organs are made up of different tissues.
5) Organ (System) level- Organ systems consist of different
organs that work together closely.
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6) Organismal Level- The human organism is made up of many
organ systems.
11 Organ systems of the body (major functions)
Ans: 1) Integumentary System- Forms the external body
covering.
2) Skeletal System- Protects and supports body organs.
3) Muscular System- Allows manipulation of the environment,
locomotion, and facial expressions.
4) Lymphatic System- Picks up fluid leaked from blood vessels
and returns it to the blood
5) Respiratory System- Keeps blood constantly supplied with
oxygen and removes carbon dioxide.
6) Digestive System- Breaks down food into absorbable units
that enter the blood for distribution to body cells.
7) Nervous System- Fast acting control system of the body.
8) Endocrine System- Glands secrete hormones that regulate
processes such as growth, reproduction, and nutrient use.
9)Cardiovascular System- Blood vessels transport blood, which
carries oxygen, carbon dioxide, nutrients , wastes, etc.
10) Urinary System- Eliminates nitrogenous wastes from the
body.
11) Reproductive System- Overall function is production of
offspring.
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