A(n) ________ is a complex community of various types of microbes that adhere to surfaces.
A. aggregate
B. colony
C. CFU
D. biofilm
E. inoculum
Answer: D
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What would a scientist see when looking through a microscope at a piece of shoulder muscle?
A. striations with branched fibers B. no striations and unbranched fibers C. no striations and branched fibers D. striations with unbranched fibers E. None of the answers are correct.
The evolutionary force that operates primarily through chance is
a. natural selection. b. genetic drift. c. isolation. d. mating preference. e. pregnancy.
Protein should be a daily part of the diet because
A. it is used rapidly for energy. B. it is the most easily metabolized food. C. it cannot be stored. D. All of the above are correct.
On the basis of the principle of complementary base pairing, you would expect the percentage of _____ to be equal to the percentage of _____.
a. adenine ... thymine b. adenine ... guanine c. thymine ... guanine d. adenine ... cytosine e. thymine ... cytosine