Plasma makes up approximately ____ percent of the total blood volume
a. 10
b. 25
c. 50
d. 75
e. 90
ANSWER: c
Biology & Microbiology
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The organisms isolated from hydrothermal vents are typically
A. phototrophs. B. chemolithoautotrophs. C. rhizobia. D. bacteroid. E. phototrophs, rhizobia AND bacteroid.
Biology & Microbiology
What is the primary characteristic that groups phyla within the Ecdysozoa?
A. They all have tropchophore larvae. B. They shed their exoskeletons. C. They all have spiral cleavage. D. They all have segmentation.
Biology & Microbiology
The large, complex aggregation of proteins and enzymes that assembles at the replication fork is known as the ________
Fill in the blank(s) with correct word
Biology & Microbiology
The C4 photosynthetic pathway is most common in
A) gymnosperm trees. B) angiosperm trees. C) algae, bryophytes, and ferns. D) grasses and shrubs in warm and dry climates.
Biology & Microbiology