The center cavity of the diaphysis of a long bone is called the ________.
A. canaliculus
B. marrow cavity
C. epiphysis
D. central canal
E. nutrient foramen
Answer: B
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Which is not involved in the feedback loop regulation of thyroid hormone secretion?
A. Hypothalamus B. Thyrotropin-releasing hormone C. Thyroid stimulating hormone D. Thyrotropic cells E. Parafollicular cells
Which of the following would be regarded as an organic molecule?
A) H2O B) NaCl C) NaOH D) CH4
In order for a synapse to be an effective means of cellular communication, slow removal or inactivation of neurotransmitter molecules from the synapse is important.
A) True B) False
ATP is a nucleotide that is composed of
A. adenosine, deoxyribose, and three phosphorous atoms. B. arginine, thymidine and three phosphorous atoms. C. adenine, thymine, and three covalently bonded phosphate groups. D. adenine, ribose, and three covalently bonded phosphate groups. E. adipose, thymine, and three phosphate groups linked by ionic bonds.