Mutations
a. are the basis of variability among individuals.
b. are the basis of homogeneity in a population.
c. are always bad for populations.
d. are always good for populations.
e. are always harmful for individuals.
A
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The discovery of Tiktaalik roseae was significant for which of the following reasons?
A. It provided evidence that terrestrial vertebrates are descended from fish. B. It provided evidence that birds and dinosaurs are closely related. C. It was the first fossil to be found with soft parts preserved. D. It provided evidence that the continents were once linked together. E. It was the first fossil from which DNA and other macromolecules were successfully extracted.
Products that limit pH changes are often incorporated into media and are referred to as
A. enzymes. B. bases. C. buffers. D. acids.
Tobacco mosaic virus can be transmitted between individual plants by biting insects.
Answer the following statement true (T) or false (F)
Organisms that cannot withstand large changes in temperature are referred to as:
What will be an ideal response?