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Bio10A:  Functions of systems in organisms

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

Organs that work together form
a.
connective tissues.
c.
organ systems.
b.
tissue systems.
d.
All of the above
 

 2. 

Which of the following would likely occur if endothermy were disrupted?
a.
Body temperature could not be maintained.
b.
Strenuous physical activity would be difficult.
c.
Enzymes would be inactivated.
d.
All of the above
 

 3. 

The heart and lungs are protected by the
a.
pectoral girdle.
c.
rib cage.
b.
pelvic girdle.
d.
periosteum.
 

 4. 

Of the following, the structure that is not part of the axial skeleton is the
a.
backbone.
c.
rib cage.
b.
pectoral girdle.
d.
skull.
 
 
bio10a-04_files/i0060000.jpg
 

 5. 

Refer to the illustration above. The material labeled A, which fills the center and spaces at ends and produces blood cells, is known as
a.
exocrine material.
c.
bone marrow.
b.
cartilage.
d.
spongy bone.
 

 6. 

flexors : bend ::
a.
immovable joints : bend
b.
slightly movable joints : be immovable
c.
extensors : straighten
d.
sutures : move a great deal
 

 7. 

Aerobic activities
a.
are best for increasing muscle size and strength.
b.
produce ATP more efficiently than glycolysis.
c.
use up glycogen stores quickly.
d.
prevent myosin and actin linkages in muscles.
 

 8. 

Hair and nails are produced by the cells of the
a.
dermis.
c.
subcutaneous glands.
b.
subcutaneous level.
d.
epidermis.
 

 9. 

Overexposure to sunlight may cause all of the following except
a.
mutations in the skin cells.
c.
acne.
b.
premature aging of the skin.
d.
skin cancer.
 

 10. 

The most effective way to reduce the risk of skin cancer includes
a.
using a sunscreen.
b.
increasing exposure to sunlight gradually.
c.
minimizing exposure to sunlight.
d.
All of the above
 



 
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