Which hormone is associated with the biological clock?

a. insulin
b. growth hormone
c. melatonin
d. cortisol
e. prostaglandins


C

Biology & Microbiology

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Which one of the following is the only domain that contains eukaryotes?

A) Animalia B) Plantae C) Archaea D) Eukarya

Biology & Microbiology

In a gymnosperm, pollen is produced in the male ____ and is transported by the wind to the female cone. 

A. anther B. stamen C. cone D. pistil

Biology & Microbiology

Based on molecular analyses, scientists now believe the domestication of the closest relatives of modern dogs began

between ____ years ago.

a. 800 and 1,200 b. 1,000 and 3,000 c. 4,000 and 8,000

d. 9,000 and 12,000 e. 18,800 and 32,100

Biology & Microbiology

Movement of substances that requires the

expenditure of ATP molecules is

a. facilitated diffusion. b. simple diffusion. c. active transport. d. osmosis. e. bulk flow.

Biology & Microbiology