By volume, what percentage of cells in blood are white blood cells?

a. 15 percent
b. 50 percent
c. 1 percent
d. 85 percent


c. 1 percent

Biology & Microbiology

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Most intertidal chitons are considered

a. grazers. b. predators. c. scavengers. d. filter feeders. e. infauna.

Biology & Microbiology

According to the redundancy hypothesis, species are redundant if

A. they have an effect on the ecosystem that is disproportionate with their abundance. B. they could be eliminated or replaced by others with no loss of ecosystem function. C. their ecological niche overlaps somewhat with another species.  D. they have grown beyond their carrying capacity for a particular ecosystem.

Biology & Microbiology

Hydrogens are combined with oxygen at the completion of 

A. glycolysis. B. fermentation. C. the Krebs cycle. D. the electron transport system.

Biology & Microbiology

During DNA replication, ________ are 1000-2000 nucleotide long strands synthesized on the ________ strand to maintain the ________ of replication

A) primers; leading; discontinuity B) Okazaki fragments; lagging; bidirectionality C) primers, lagging; continuity D) Okazaki fragments; leading, accuracy E) Okazaki fragments; leading; semidiscontinuity

Biology & Microbiology