Beta diversity, or turnover, would be at its minimum if all species occurred in all habitats within a region. Beta diversity would be at its maximum if each habitat had a unique biota, and regional diversity would equal:
A) the mean of the local diversities of all the habitats within the region.
B) the sum of the local diversities of all the habitats within the region.
C) the largest among the local diversities of all the habitats within the region.
D) the smallest among the local diversities of all the habitats within the region.
Ans: B) the sum of the local diversities of all the habitats within the region.
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Which of the following statements about telomeres is INCORRECT?
A. Telomeres are produced by telomerase. B. Telomeres are found at the ends of DNA. C. Telomeres are short repeat sequences. D. Telomeres would predominate more in cells of older than younger individuals. E. Telomeres are crucial to the viability of a cell that replicates often.
Which of the following structures is NOT derived from the pharyngeal arches?
a. face b. mouth c. neck d. nasal cavities e. shoulder blades
________ is marked by people who maintain that they are famous or important.
Fill in the blank(s) with the appropriate word(s).
Why are acid fast organisms difficult to stain?
What will be an ideal response?