Identify the structure labeled #8, which is a building block of proteins.
A) nucleic acid
B) peptide
C) amino acid
D) monosaccharide
E) lauric acid
C) amino acid
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All of the following are result of thyroid hormones except
A) elevated rates of oxygen consumption and energy consumption. B) decreased heart rate and force of contraction. C) increased sensitivity to sympathetic stimulation. D) maintenance of normal sensitivity of respiratory centers. E) stimulation of red blood cell formation.
The pattern of synaptic connectivity where a large number of presynaptic neurons provide input to a single postsynaptic neuron, is known as
A) integration. B) potentiation. C) saltatory conduction. D) divergence. E) convergence.
The process of spermatogenesis from primary spermatocyte to sperm:
A. takes about three weeks in the human. B. occurs when a male is an embryo, ceasing at birth. C. requires participation of Sertoli cells. D. occurs in the epididymis. E. occurs as the cells gradually travel between two closely attached Leydig cells.
When during human development does the process of ossification begin?
A. 12 weeks after birth B. 12th-13th week of embryonic development C. 8th-9th month of fetal development D. 3-4 months of age E. 10-25 years of age