Human plasma is mainly composed of:
a. albumin
b. red blood cells
c. white blood cells
d. water
e. dissolved ions, sugars, and hormones
d
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What protozoan parasite is acquired by the oral route, but once ingested can readily cross the placenta causing an infection in the fetus that can result in a number of congenital defects?
A. Cyclospora cayetanensis B. Giardia intestinalis C. Cryptosporidium parvum D. Toxoplasma gondii
A chromosome that results when the centromere splits in the wrong plane during meiosis, forming identical arms, is a(n)
A) ring chromosome. B) metachromosome. C) parachromosome. D) isochromosome.
Conifers are characterized by all of the following
EXCEPT a. thick cuticles. b. intolerance to warm climates. c. needle-shaped leaves. d. recessed stomata. e. adaptations for conserving water.
The general order of classification below the domain or kingdom level is ________.
A. phyla, class, family, order, genus, species B. phyla, class, order, family, genus, species C. phyla, order, class, family, genus, species D. phyla, order, family, class, genus, species