The Most Probable Number (MPN) method is used
A) to estimate numbers of cells in samples with a high density of bacterial cells.
B) when samples contain obligate anaerobes.
C) to estimate numbers of cells in samples with a low density of bacterial cells.
D) to isolate autotrophic bacteria.
E) to determine the generation time of bacterial isolates.
C
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Which of the following would be found in Bowman's space? (Select all correct choices.)
A. water B. glucose C. wastes D. solutes from the blood E. large proteins
What are possible benefits to an animal of defending a territory? Check all that apply.
_____ access to mates _____ optimal nesting/breeding sites _____ decreased foraging time _____ increased intraspecific competition _____ increased food resources
In random mating
A. breeding occurs between two different subspecies. B. breeding occurs between two different species. C. individuals choose the most attractive mate. D. fertile offspring are not produced. E. there is no factor influencing mate choice.
Many plants produce chemicals that are used as medicines. For example, the drug digitalis, which stimulates the human heart, is derived from foxglove, a poisonous plant. What advantage does producing toxic compounds have for the plant?
What will be an ideal response?