When Darwin observed several species of finches on the Galápagos Islands had unique beak characteristics, he compared them with finch beaks on the mainland. Which of the following studies use geographic distribution of extinct and living species to determine patterns of evolution?
A. Biology.
B. Geology.
C. Palentology.
D. Geneology.
E. Biogeography.
E. Biogeography.
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Decompression sickness occurs when which gas forms bubbles in the blood?
a. oxygen b. carbon dioxide c. carbon monoxide d. methane e. nitrogen
HREs are
A) hormone receptors. B) DNA sequences in promoter regions to which steroid hormone receptors bind. C) proteins that interact with histones. D) elements that lead to histone deacetylation. E) None of these
Which of the following is NOT an example of an adhesion factor?
A. Lipoteichoic acid B. Glycocalyx C. Mucin D. Fimbriae E. All of the above are examples of adhesions
The type of speciation that results in the formation of separate species as a result of geographic isolation is called ________ speciation.
A. gradual B. adaptive C. sympatric D. sexual E. allopatric