Penicillin was discovered by
A. Koch.
B. Hooke.
C. Fleming.
D. Ehrlich.
C
Biology & Microbiology
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Leaves absorb the least amount of light in the ________ range of the visible spectrum
A. orange B. green C. blue D. yellow E. violet
Biology & Microbiology
The major organism used in the microbial production of citric acid is ________.
A. Aspergillus niger B. Penicillium notatum C. Lactobacillus delbrueckii D. Rhizopus nigrificans
Biology & Microbiology
Evergreen trees are found in
a. the Southeastern U.S. b. temperate lowlands in the U.S. c. the taiga. d. the boreal forests. e. all of these.
Biology & Microbiology
Which of the following is necessary for the fetus to develop female gonads?
a. lack of testosterone exposure b. presence of Y chromosome c. estrogen d. progesterone e. both estrogen and progesterone
Biology & Microbiology