The ____ is a system of vesicles that wraps around each A band and I band and stores ions that are
used in muscle contractions.
a. neuromuscular junction
b. Golgi apparatus
c. endolemma
d. microvillus
e. sarcoplasmic reticulum
E
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DNA transposable elements (DNA TEs) are:
A. a class of transposable elements that replicate and transpose via DNA replication and repair. B. a class of transposable elements that uses RNA as an intermediate. C. a class of transposable elements that uses DNA as an intermediate. D. a class of transposable elements that uses protein as an intermediate. E. a class of transposable elements that uses ribosomes as an intermediate.
A strain of Neisseria gonorrhoeae has undergone a mutation and is no longer able to make pili. Predict the most likely outcome.
A. The bacteria will become less virulent and will not be able to readily establish infection. B. The bacterial strain will no longer be able to transport certain sugars into the cell. C. The bacteria will become more resistant to antibiotics. D. The bacteria will become more virulent and will more readily establish infection.
A true predator is a species that
A) feeds upon any part of any organism, not necessarily killing it. B) feeds only on animals. C) kills its prey more or less immediately upon capture. D) feeds on dead or living prey.
In 1927, the U.S. Supreme Court upheld the right of states to use ____________________ as a means of preventing
reproduction by those deemed “unfit.” Fill in the blank(s) with the appropriate word(s).