Which one of the following marine ecosystems would be expected to have the lowest species diversity and primary production per unit area?
A. coral reefs
B. estuaries
C. intertidal zone
D. upwelling regions of ocean
E. oligotrophic oceans
Answer: E
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Heritability is the amount of genetic variation in a particular population and a particular environment
Indicate whether the statement is true or false
Dendritic cells enter the ____ and alert T cells to threats
a. blood b. lymph nodes c. bone marrow d. liver e. lung
Four of the five answers listed below are
related by a common region of the plant body. Select the EXCEPTION.
a. leaf b. root cap c. node d. axillary bud e. stem
An F? donor includes F DNA plus a segment of bacterial chromosome DNA. If conjugation is interrupted before the entire F? chromosome transfers, what could be the expected consequences?
A) integration of some but not all F? genes into the recipient's chromosome B) a smaller F? plasmid than had been present in the donor C) failure of the F? strand to circularize in the recipient D) change of the recipient from F– to F+ E) formation of a recipient that is a stable partial diploid