Every day, Americans use ____ billion gallons of water

A) 600
B) 300
C) 240
D) 450


B

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Answer the following statement(s) true (T) or false (F)

The flow switch symbol is used for both liquid and air flow switches.

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Plants that have two copies of each chromosomes are:

a. diploids c. hexaploids b. polyploids d. tetraploids

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During heat stress, the thyroid gland secretes ________ thyroxine, causing metabolic rate

and heat production to decrease. A. more B. less

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When small fish, or ____________________, hatch, they are placed in a tank.

Fill in the blank(s) with the appropriate word(s).

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