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Biology

Page 3

The rational and prudent use of natural resources is known as

a.

preservation

b.

conservation

c.

utilization

d.

management

Which of the following pyramids gives the most accurate picture of the relationship between organisms at the various trophic levels in a food chain? A pyramid of

a.

numbers

b.

energy

c.

biomass

d.

size

Muscles act in opposite directions in order to

a.

cause a bone to move

b.

prevent dislocation at joints

c.

prevent muscle fatigue

d.

regulate bodily activities

Which of the following organs is responsible for the production of insulin

a.

Spleen

b.

Adrenal gland

c.

Thyroid gland

d.

Pancreas

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