Osmosis is
What will be an ideal response?
the diffusion of water across a membrane
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Choose which bone marking type would likely increase in size when a weight lifter repeatedly exercises muscles that attach to it
A) meatus B) fossa C) trochanter D) foramen
Describe the events that must occur in order for sperm to penetrate an egg. What prevents more than one sperm from entering? In the case of twins, how many sperm entered the egg? Why must a man have millions of sperm in a semen sample to be considered fertile? If only one sperm were present in the semen and that sperm managed to find its way to the egg, could it fertilize the egg? Explain.
What will be an ideal response?
When a person has an asthma attack, they might experience difficulty breathing, also known as ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following is not required for arousal to occur?
A) There must be sufficient blood hydrostatic pressure. B) The sacral spinal cord must be intact. C) Nitric oxide must be present. D) Sympathetic stimulation of sacral nerves. E) Parasympathetic stimulation of pelvic nerves.