Which description illustrates an amphipathic molecule?
a. A phospholipid with two polar ends
b. A phospholipid with two hydrophobic ends
c. A phospholipid with only one hydrophilic end
d. A phospholipid with only one hydrophobic end
e. A phospholipid with both a hydrophobic end and a hydrophilic end
e
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If a population satisfies the Hardy-Weinberg equilibrium model, what can you assume about that population?
A. It is relatively small. B. Evolution is occurring. C. Gene flow is occurring. D. Allele and genotype frequencies are stable.
Air enters human lungs from the mouth by passing through the ________.
A. posterior air sacs B. trachea C. spiracles D. esophagus E. nasal cavities
Rosalind Franklin did not share in the Nobel
Prize for the discovery of the structure of DNA because
a. she was a woman. b. her contributions were minimal. c. she was not liked by James Watson. d. her ideas were stolen by Maurice Wilking. e. she died of cancer before the award was given.
Compare and contrast allopatric and sympatric speciation. What will be an ideal response?