Which of the following pairs is mismatched?
A) nematodes — complete digestive tract
B) cestodes — segmented body made of proglottids
C) trematodes — flukes
D) nematodes — many are free-living
E) cestodes — all are free-living
E
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What differentiates diagnostic techniques that employ phenotypic (culture-based) methods from those that employ molecular methods?
a. Phenotypic methods are highly sensitive and specific, while molecular methods are not. b. Phenotypic methods examine the growth behavior of a microorganism and the pro-teins, enzymes, or toxins produced, while molecular methods examine the genetic makeup. c. Phenotypic methods are quantitative while molecular methods are not. d. Phenotypic methods are not limited to de-tection of live organisms as are molecular methods.
Some intercellular regulatory molecules that exert only very local effects are called ________ regulators.
A. sympathetic B. exogeneous C. merocrine D. endocrine E. paracrine
Fertilization of an egg in vitro, leading to separation of individual cells from the 8-cell stage for implantation into a surrogate mother is called ________
Fill in the blank(s) with correct word
What would the result be if histamine and nitric oxide were NOT secreted during a puncture injury?
A. The blood vessels would be more permeable. B. The blood vessels would dilate. C. Healing would not take place at all. D. The blood mast cells would constrict. E. Healing would be slower.