When considering the biomass of a photosynthetic organism for energy transfer studies, which of the following best explains why it is necessary to use the dry mass rather than the wet mass to determine productivity?
(A) The wet mass can vary widely due to differing concentrations of minerals in soil
(B) The mass that is produced and added to the organism does not include the mass of water
(C) Water has no caloric value
(D) Water plays no role in primary productivity
Answer: (B) The mass that is produced and added to the organism does not include the mass of water
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The following figure demonstrates which process by which linkage disequilibrium can be created?
a. drift b. selection c. mutation d. migration e. All of the above
Human society favors outbreeding, or the mating of individuals that are genetically unrelated
Indicate whether the statement is true or false
All mutations are not beneficial to the cell.
Answer the following statement true (T) or false (F)
Which of the following diseases is currently vaccine-preventable in humans?
A) schistosomiasis B) malaria C) Lyme disease D) plague E) yellow fever