________ wrap aroung neurons in the preiheral nervous system, covering them with layers of plasma membrane.
A. Schwann cells
B. oligodendrocytes
C. microglia
D. astrocytes
Answer: A. Schwann cells
Biology & Microbiology
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An example of an obligatory mutualism involves which two organisms?
a. acacia trees and ant colonies b. mycorrhizae and legumes c. cattle egrets and cattle d. plants and herbivores e. tapeworms and pigs
Biology & Microbiology
When does spermatogenesis first occur in males?
A) in the womb B) at birth C) during childhood D) at puberty
Biology & Microbiology
The reactions of photosynthesis are summarized as
A. 6CO2 + 6H2O ? C6H12O6 + 6O2 B. 6CO + 6H2O ? C6H12O6 + 6H2O C. 12CO2 + 6H2O ? C12H12O6 + 6H2O D. 6CO + 6H2O ? C6H12O6 + 6O2 E. None of the answers are correct
Biology & Microbiology
What simple test may be preformed to detect the eggs produced by this organism?
A. blood test B. skin test C. rectal swab test D. tape test
Biology & Microbiology