The immunoglobulin class that is the only one capable of crossing the placenta is ________.
A. IgA
B. IgG
C. IgM
D. IgE
E. IgD
Answer: B
Biology & Microbiology
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A) chlorophyll a B) chlorophyll c C) lutein D) phycoerythrin E) ?-carotene
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Which of the following does NOT add carbon dioxide to the atmosphere?
a. forest fires b. decomposers c. burning of fossil fuels d. photosynthesis e. decomposer respiration
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Charles is comatose. What part of his brain is not working properly?
A) limbic system B) reticular activating system C) corpus callosum D) amygdala
Biology & Microbiology
Passive artificial immunity to the hepatitis B virus is provided by immunization with ________.
What will be an ideal response?
Biology & Microbiology