________ exists when the immune system does not respond to a particular antigen
A) Immunity
B) Memory
C) Adaptation
D) Tolerance
E) Versatility
D
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Which of the following is true about smooth muscle contraction?
A) Certain smooth muscle cells can actually divide to increase their numbers. B) Smooth muscle, in contrast to skeletal muscle, cannot synthesize or secrete any connective tissue elements. C) Smooth muscle cannot stretch as much as skeletal muscle. D) Smooth muscle has well-developed T tubules at the site of invagination.
interphase G1
What will be an ideal response?
Axons of the corticobulbar tract terminate in the
A) sensory neurons. B) somatic motor neurons in the spinal cord. C) autonomic motor neurons in the spinal cord. D) motor nuclei of cranial nerves. E) nuclei in the thalamus.
The epithelial lining of the proximal convoluted tubule has a brush border of microvilli.
Answer the following statement true (T) or false (F)