The neurotransmitter acetylcholine is released by neurons at the neuroeffector synapse?
A. True only for the sympathetic division
B. True only for the parasympathetic division
C. True for both divisions
Answer: B. True only for the parasympathetic division
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A clamp connection is:
A. a ring of hyphae produced by some fungi that is used to snare nematodes B. a bypass formed during cell division in basidiomycetes that aids distribution on nuclei C. the connection of a basidiospore to the basidium D. the sticky substance that holds shelf fungi onto trees E. the hyphae that hold crustose lichens onto rocks
Shigella
A. are themselves nonmotile. B. may be pushed from cell to cell by actin tails. C. utilize pili to move. D. utilize flagella to move. E. are themselves nonmotile AND may be pushed from cell to cell by actin tails.
Locations where molten rock rupture a tectonic plate are called:
a. hot spots b. faults c. ridges d. weak spots e. trenches
Which of the following is one of the most important and widespread hospital pathogens, and is often resistant to common antibiotics?
A) Staphylococcus aureus B) Pseudomonas aeruginosa C) Escherichia coli D) Klebsiella pneumoniae E) Salmonella typhi