Unit Test — Cumulative exam Answers

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Sand dollars typically live in the intertidal zone. Which adaptation do sand dollars most likely have?

A
lungs that can draw oxygen out of the air
B
a body structure that allows them to live in fresh or salt water
C
a body structure that allows them not to dry out when out of the water
D
gills that can draw oxygen out of the water
25

Maintaining a healthy lifestyle through diet and exercise is important,

A
but it has no effect on the immune system.
B
but it actually decreases the immune system.
C
but exercise is more important than diet for the immune system..
D
but no specific diet has been proven to boost the immune system.

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Unit Test — Cumulative exam Answers…