Which statement about fixed action patterns is NOT true?
a. They occur in both vertebrates and invertebrates.
b. They are not considered to be reflexes.
c. They use command fibers located in the central nervous system.
d. They are generated in response to a specific stimulus.
e. A species of animals will carry out the behavior in the same manner.
B
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A term meaning toward the tail end of the spine is ___________________.
Fill in the blank(s) with the appropriate word(s).
As blood moves from the arterial end to the venous end of a capillary, net filtration pressure
A. increases, as blood hydrostatic pressure rises. B. increases, as blood colloid osmotic pressure rises. C. decreases, as blood hydrostatic pressure decreases. D. decreases, as blood colloid osmotic pressure decreases. E. remains the same, as rises in blood osmotic pressure are offset by declines in tissue osmotic pressure.
In addition to thyroxine and triiodothyronine, the thyroid gland produces ________.
A) TSH B) ACTH C) calcitonin D) FSH
The pH of the cerebrospinal fluid is monitored by which of these brainstem centers?
A. Hypothalamic osmoreceptors B. Medullary baroreceptors C. PRG D. Central chemoreceptors