The shark immune system has been so effective that they have survived longer than mammals have been on earth
Indicate whether the statement is true or false
TRUE
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Secretory vesicles are about 200 times larger than transport vesicles
Indicate whether the statement is true or false
Pernicious anemia develops from a deficiency of
a. ATP b. carbonic anhydrase c. cobalt d. erythropoietin e. intrinsic factor
Parasympathetic preganglionic axons
1.are shorter than parasympathetic postganglionic axons.
2.are shorter than sympathetic preganglionic axons.
3.release the same neurotransmitter as that released by sympathetic postganglionic axons.
4.release a different neurotransmitter than that released by sympathetic preganglionic axons.
5.release the same neurotransmitter as that released by parasympathetic postganglionic axons.\
________ lacks the capacity to remember a pathogen or react differently to it in the future, whereas ________ utilizes memory cells to adapt to a given pathogen and ward it off more easily in the future
A) Adaptive immunity; specific immunity B) Nonspecific resistance; adaptive immunity C) Adaptive immunity; nonspecific resistance D) A natural killer cell; a cytoxic T cell E) Nonspecific resistance; cytotoxicity