A TEM is a device that is used to magnify a cell only about 1,000 times
a. true
b. false
Ans: b. false
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Which structure is not supplied by postganglionic fibers that originate in the celiac ganglion?
A. Liver B. Small intestine C. Spleen D. Stomach E. Pancreas
If through injury, both the blood flow to the kidneys and the glomerular filtration pressure decrease, which of the following will likely occur?
A) The renin-angiotensin system will be activated. B) Sodium reabsorption will be inhibited. C) Vasoconstriction of the afferent arterioles and glomerular capillaries. D) Vasodilation of the efferent arterioles and glomerular capillaries. E) The amount of ADH released in the blood will decrease.
The appearance of a cleavage furrow indicates that
A. cytokinesis is occurring. B. mitosis is about to begin. C. the G0 phase is occurring. D. the G2 phase is coming to an end. E. the cell will soon be entering the S phase.
Which type of cell attacks a variety of unwanted cells and causes those cells to undergo apoptosis?
A. Basophils B. Eosinophils C. Macrophages D. Neutrophils E. Natural killer cells