Assuming resting conditions at sea level, what is the partial pressure of oxygen in systemic veins?
A)160mmHg
B)100mmHg
C) 80 mm Hg
D) 46 mm Hg
E) 40 mm Hg
Answer: E) 40 mm Hg
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The natural habitat of Chryseobacterium sp. can best be described as the:
a. mucous membranes of animals. b. gastrointestinal tract of humans and other animals. c. natural environment. d. genitourinary tract of animals.
The base of the food web in the deep sea is:
a. phytoplankton. b. algae. c. seagrasses. d. sinking dead matter. e. viruses.
Damage to which two structures determines the severity of a case of amnesia?
a. hippocampus / amygdala b. amygdala / hypothalamus c. hippocampus / thalamus d. hippocampus / hypothalamus e. basal ganglia / amygdala
Red blood cells are biconcave. Their shape is determined by interior proteins anchored to the membrane termed
A. phospholipids. B. clathrins. C. actin filaments. D. cytoskeleton. E. spectrins.