The ________ is a salty fluid continuously secreted into hollow cavities known as ________. This fluid is secreted into these cavities by the ________, a specialized tissue consisting of capillaries and transport epithelium.
Fill in the blank(s) with the appropriate word(s).
cerebrospinal fluid (CSF), ventricles; choroid plexus
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Different cell types in the body
A) produce exactly the same proteins. B) have different genes. C) are identical except for their superficial appearance. D) have the same genes, but different sets of genes are inactivated. E) have the ability to take on the characteristics of each other or any cell in the body.
Megan wants to enter a weight-lifting competition and consults you as to what type of muscle fibers she needs to develop and how she should go about it. What would you suggest to her?
Choose the incorrect statement regarding EPSPs.
A. They are capable of summation. B. They have a refractory period. C. They are graded responses. D. They are initiated by neurotransmitters.
In a(n) ________, each ductus deferens is cut, and either a segment is removed and the ends tied (or cauterized) or silicone plugs are inserted
A) prostatectomy B) tubal ligation C) vasectomy D) hysterectomy E) ovariectomy