The dinosaurs went extinct at the end of the Cretaceous period

a. true
b. false


Ans: a. true

Biology & Microbiology

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The Gram-staining procedure is an example of ________.

A. negative staining B. differential staining C. fluorescent staining D. simple staining

Biology & Microbiology

Due to differences in girdle design, there are more functional muscle groups in the hindlimb than the forelimb

a. true b. false

Biology & Microbiology

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

Biology & Microbiology

Flowers bear seeds that develop from ovules housed in protective chambers called

A) stamens. B) sepals. C) ovaries. D) pistils.

Biology & Microbiology