In ________ a stimulus produces a response that amplifies or enhances the original stimulus
A) negative feedback
B) positive feedback
C) homeostatic equilibrium
D) dynamic equilibrium
E) homeostasis
B
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An alternative term for the bulbourethral glands is ____________________.
Fill in the blank(s) with the appropriate word(s).
Agents which cause damage during embryonic or fetal development are termed:
A) mutifactorial agents B) phenotypic agents C) teratogenic agents D) none of the above
Which best describes the extracellular matrix?
A. It is found just inside the cell membrane in all tissues, it sends branching collagen fibers between cells to connect them, and it transmits chemical information from the interior of one cell to the interior of adjacent cells. B. It is a tissue having more than the four general cell types, it transports proteins and polysaccharides between body compartments, and it is the route by which chemical signals like hormones reach all parts of the body. C. It covers the body's surface, it contains connective and muscle tissue, and it helps generate movement. D. It surrounds cells; it contains proteins, polysaccharides, and minerals; it provides a scaffold for cell attachment; and it transmits chemical messengers to cells.
Troponin and tropomyosin are associated with what other protein within the muscle fibers?
A. intermediate filaments B. extra cellular matrix C. microtubules D. actin