Microbes that are found in hot springs or other extreme environments are most likely to be ____
a. Gram-negative
b. Gram-positive
c. archaeans
d. cyanobacteria
e. proteobacteria
ANSWER: c
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A ______ making too much prolactin would result in the overproduction of milk in the mammary glands.
a. thyroid gland b. pancreas c. parathyroid gland d. pituitary gland
Which type of muscle tissue is voluntary?
1.cardiac 2.skeletal 3.smooth 4.all of these
Communication between animals is
A. usually primarily instinctive. B. common between different species. C. primarily a learned activity. D. rare.
Water molecules stick to other water molecules because
A) water molecules are neutral, and neutral molecules are attracted to each other. B) hydrogen bonds form between the hydrogen atoms of one water molecule and the oxygen atoms of other water molecules. C) covalent bonds form between the hydrogen atoms of one water molecule and the oxygen atoms of other water molecules. D) the oxygen atoms of adjacent water molecules are attracted to one another.