The dinosaurs went extinct at the end of the Cretaceous period
a. true
b. false
Ans: a. true
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While studying the synthesis of Molecule X in prokaryotes, you discover that you can halt this process temporarily by adding a quantity of Molecule W to your solution, but only when Molecule X is also absent from the solution. What conclusion can you draw from this discovery?
a. Molecule W is a repressor b. Molecule W binds to the operator c. Molecule W is an inducer d. Molecule W binds to Molecule X
The Gram-staining procedure is an example of ________.
A. negative staining B. differential staining C. fluorescent staining D. simple staining
Flowers bear seeds that develop from ovules housed in protective chambers called
A) stamens. B) sepals. C) ovaries. D) pistils.
Due to differences in girdle design, there are more functional muscle groups in the hindlimb than the forelimb
a. true b. false