Crossing over is important for ________.
increasing genetic variability
preventing mutations
limiting genetic recombination
maintaining chromosome structure
increasing genetic variability
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The kidneys play a major role in the regulation of which of the following? select all that apply.
a) electrolytes b) cholesterol levels c) acid-base balance d) body temperature
The sternal angle can be used as an anatomical landmark to identify the position of the
A. jugular vein. B. trachea. C. hyoid bone. D. apex of the heart. E. second rib.
Which of the following form the inner layer of the glomerular capsule and wrap around the capillaries of the glomerulus?
A. Mesangial cells B. Monocytes C. Nephrocytes D. Podocytes E. Macula densa cells
In the fast block to polyspermy, binding of sperm opens up ________ channels, which depolarizes the egg membrane and prevents the entrance of any more sperm.
A. K+ B. Ca2+ C. Mg2+ D. Na+ E. Cl-