Chlamydia trachomatis causes
A. gonococcal urethritis.
B. trachoma.
C. dental caries.
D. trachoma and nongonococcal urethritis.
Answer: D
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It is accurate to say that neural transmission across nearly all mammalian synaptic clefts is the result of
A. neural impulses involving the flow of K+ and Na+ across the cleft. B. neural impulses traveling across the gap as electrical currents. C. neural impulses causing the release of chemicals that diffuse across the cleft. D. neural impulses traveling across the cleft in both directions. E. the calcium within the axons and dendrites of nerves adjacent to a synapse acting as the neurotransmitter.
In endotherms, an increase in mass-specific metabolic rate lowers production efficiency
Indicate whether the statement is true or false
What is the maximum number of covalent bonds that an oxygen atom with atomic number 8 can make with hydrogen?
A) 1 B) 2 C) 4 D) 6
To obtain energy from starch and glycogen, the body must begin by
A) hydrolyzing the starch to glucose and the glycogen to amino acids. B) hydrolyzing both starch and glycogen to glucose. C) converting both starch and glycogen to fatty acids. D) removing one glucose at a time with a condensation reaction.