What action is initiated when lymph enters a lymph node through the afferent vessel?
A) ?Surging of lymph to the next vessel
B) ?Creation of blood cells
C) ?Destruction of red blood cells
D) ?Response of the immune system
D
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When an action potential passes over the surface of a synaptic knob, the contents of the vesicles are released in response to the presence of
A. sodium ions. B. neuropeptides. C. neurotransmitters. D. calcium ions.
Identify the pairing that has the least related items:
a. pinocytosis, endocytosis b. catalase, peroxisome c. clathrin, secretory vesicle d. phagocytosis, pseudopods e. t-SNARE, plasma membrane
Ependymal cells ________
A) are a type of macrophage B) are a type of neuron C) contribute to the production of cerebrospinal fluid D) myelinate the CNS axons
What process results in the exact duplication of DNA?
A) metaphase B) prophase C) DNA replication D) protein synthesis