What is the role of acetylcholinesterase?
A) act as a transmitting agent
B) amplify or enhance the effect of ACh
C) destroy ACh a brief period after its release by the axon endings
D) stimulate the production of serotonin
C) destroy ACh a brief period after its release by the axon endings
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________________________________________ are abnormally shaped protein molecules that cause transmissible spongiform encephalopathic diseases
Fill in the blank(s) with correct word
In severe loss of RBCs, the rate of erythropoiesis can be increased to more than six times the normal level
a. True b. False Indicate whether the statement is true or false
From a physiological perspective, the increase in pelage (i.e. fur) that some mammals experience in winter represents
a. acclimation. b. acclimatization. c. adaptation. d. feedback inhibition.
The sperm nucleus and ovum nucleus unite in fertilization to form a(n) ________, the first cell of the infant-to-be.
A. blastocyte B. zygote C. morula D. embryo