An organism that ferments glucose via the mixed acid fermentation pathway will be:
a. red in the nitrate reduction test
b. red in the phenol red glucose
c. red in the Voges-Proskauer test
d. red in the methyl red test
Ans: d. red in the methyl red test
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A close physical relationship between two different species that may or may not be beneficial is called ________.
Fill in the blank(s) with the appropriate word(s).
In terms of regulation of gene expression, tryptophan and allolactose are examples of ________ molecules
A) repressor B) effector C) inducer D) operator E) terminator
Bagworm moth caterpillars feed on evergreens and carry a silken case or bag around with them in which they eventually pupate. Adult female bagworm moths are larval in appearance; they lack the wings and other structures of the adult male and instead retain the appearance of a caterpillar even though they are sexually mature and can lay eggs within the bag. This is a good example of _____.
A) allometric growth B) paedomorphosis C) sympatric speciation D) adaptive radiation
The approach known as catastrophism explains Earth's geological features appealing to:
a. sudden catastrophic geological events. b. large-scale geological events. c. the same geological processes currently observable. d. A and B.