After Darwin concluded his voyage on the Beagle, he proposed that the process of natural selection was a mechanism for:
A. artificial selection.
B. speciation.
C. sexual selection.
D. evolution.
E. overpopulation of finches on the Galapagos Islands.
Answer: D
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The ampullae of Lorenzini are specialized organs for detecting ____ that are found in sharks
a. smells b. vibrations of the water c. tastes d. electrical output e. water pressure
Is Tina a potential carrier of the Hemophilia A allele?
a. Yes b. No
When first visible at the beginning of mitosis, the chromosome ________
a. is contained within the nucleosome b. consists of a single chromatid c. has lost its histones in anticipation of division d. is duplicated
Which enzyme elongates the new DNA strand starting at an RNA primer?
A) DNA polymerase I B) DNA polymerase III C) RNA primase D) DNA ligase E) RNA polymerase