The distribution of the human population in the

United States is
a. clumped.
b. random.
c. uniform.
d. constant.
e. homogeneous.


Answer: a

Biology & Microbiology

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Placing a ripe apple with other apples that are not ripe will cause the other apples to ripen sooner

Which type of plant hormone is responsible for this effect?

a. brassinosteroids b. ethylene c. auxins d. oligosaccharins e. abscisic acid

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In autotrophic bacteria, where are the enzymes located that can carry on carbon fixation (reduction of carbon dioxide to carbohydrate)?

A) in chloroplast membranes B) in chloroplast stroma C) in the cytosol D) in the nucleoid E) in the infolded plasma membrane

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Which of the following is the type of bond between molecules of water in a beaker of water?

A) ionic bond B) covalent bond C) hydrogen bond

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