The Argyll-Robertson pupil that is fixed and small, and does not react to light but does accommodate for focusing is associated with
A. Rocky Mountain spotted fever.
B. leptospirosis.
C. Lyme disease.
D. tertiary syphilis.
E. chlamydiosis.
Answer: D
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In some cases, just a few hormone molecules binding to the surface of a cell can trigger a very large response because ____.
A. the signal is amplified by activation of transcription factors that each catalyze multiple reactions B. each hormone can bind to multiple receptors simultaneously causing amplification of the signal C. the signal is amplified by activation of enzymes that each catalyze multiple reactions D. each hormone can bind to transcription factors simultaneously causing amplification of the signal E. the hormone triggers the cell to release more hormones, amplifying the signal
Mendel's work on the transmission of genes in pea plants is applicable to ____
A. only pea plants B. plants and some animals but not humans C. all plants, but only plants D. all plants and animals, including humans E. all organisms
The central nervous system develops from the same area from which this is derived
A) muscles B) digestive system C) skin D) blood cells
The hepatic portal system is a special blood circuit between the __________ and __________
a. liver; spleen b. kidney; liver c. liver; intestine d. kidney; heart e. spleen; heart