Ernst Mayr was responsible for ____
a. discovering new species atop New Guinea’s Foja Mountains
b. standardizing a two-part naming system
c. explaining the theory of natural selection
d. describing the biological species concept
e. identifying that all organisms contain DNA
ANSWER: d
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The classic book The Open Sea: Its Natural History was written by:
a. Fridtjof Nanson. b. Sir Alistair Hardy. c. Alexander Agassiz. d. Charles Wyville Thomson. e. Jacques-Yves Cousteau.
Unattached earlobes are a dominant trait in humans. Which phenotype does an individual with the genotype EE show?
A. Both earlobes are unattached. B. Both earlobes are attached. C. The right earlobe is unattached and the left earlobe is attached. D. The right earlobe is attached and the left earlobe is unattached. E. Both earlobes are extremely elongated.
Blood contains
a. dissolved gases. b. dissolved nutrients. c. dissolved hormones. d. all of the above.
Which of the following genes are contained in bacterial insertion sequences?
a. recombinase b. tetracycline resistance gene c. ampicillin resistance gen d. transposase