The period of development during which the contents of a zygote are divided into
increasingly smaller cells is _____.
Fill in the blank(s) with correct word
cleavage
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If increased atmospheric pressure decreases the activity of the Na+-K+ pump, an animal that lives in the deep sea would be expected to have ________ density of Na+-K+ pumps in their neuronal membranes compared with animals living in shallow water
a. a higher b. an equal c. a lower
Diabetes insipidus is the result of decreased ________ production.
A. aldosterone B. ADH C. insulin D. angiotensin II E. glucagon
Endocrine glands
A. lack ducts and secrete their products onto the skin surface. B. possess short ducts and secrete their products directly onto the skin surface. C. secrete mucus directly into a body cavity. D. possess ducts to secrete their products into the bloodstream or into interstitial fluid. E. lack ducts and secrete their products into the bloodstream or into interstitial fluid.
Which ciliated neuroglial cell circulates cerebrospinal fluid?
A) oligodendrocytes B) Schwann cells C) microglia D) ependymal cells E) astrocytes