A chance evolutionary change occurring in small populations is referred to as ________.
a. sexual
b. selection
c. gene flow
c. genetic drift
Answer: c. genetic drift
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Certain small towns in the western United States have remained isolated and inbred since their settlement many years ago. Some alleles are more common in these communities as compared to the rest of the population. This effect is known as
A. directional selection. B. artificial selection. C. founder effect. D. Hardy-Weinberg principle. E. disrupting selection.
Describe the components and functions of a homeostatic system and relate negative feedback. What will be an ideal response?
The first genetically modified food product available for human consumption in the United States was ________
A) the Flavr Savr tomato B) Golden Rice C) ice-minus bacteria D) RoundUp Ready corn E) Bt corn
Explain why the figure below suggests that extinction probability is independent of a taxon's age. Keep in mind that the y-axis is measured on a logarithmic scale
What will be an ideal response?