The control of hormone secretion by its own effects is called ________.
A. antagonist effector
B. negative feedback inhibition
C. positive feedback
D. negative feedback
Answer: B
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The type of muscle found in the walls of blood vessels is ________ muscle.
A. skeletal B. cardiac C. striated D. voluntary E. smooth
Only autosomal trisomies involving chromosomes 13, 18, and 21 are survivable. Why would this be?
A. These are redundant chromosomes. B. These are relatively short chromosomes. C. These chromosomes have no genes. D. These are relatively gene-poor chromosomes. E. These are relatively long chromosomes.
The pH of the cytoplasm is ________ than the interior of a primary lysosome.
A. more acidic B. less basic C. more basic D. neutral
Releasing and inhibiting hormones are produced in the ________.
A. anterior pituitary gland B. pineal gland C. posterior pituitary gland D. hypothalamus