The pineal gland
A. frequently calcifies at an early age.
B. is below the hypothalamus.
C. is the master gland of the body.
D. a, b, and c
Answer: A
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A) lateral pterygoid B) digastric C) pterygoid D) medial pterygoid E) masseter
Before cell division occurs, DNA in the nucleus is condensed to form
A. RNA. B. genes. C. cytosol. D. chromosomes. E. chromatin.
Three common components of a feedback loop are ________, ________, and ________
A) stimulus; integrating (control) center; organ system B) receptor; organ; organ system C) receptor; integrating (control) center; effector D) stimulus; receptor; integrating (control) center E) receptor; integrating (control) center; organ system
You are studying a cross-sectional tissue slice of a nerve using a transmission electron microscope. You find an area where there appears to be a small amount of cytoplasm surrounded by about 100 layers of stacked cell membranes. You conclude that you have found
A. an unmyelinated axon. B. a neuron cell body. C. a myelinated axon. D. a synapse.