Which component is responsible for initially stimulating a muscle contraction?
a) proteins
b) electrochemical signals
c) plasma membranes
d) striations
Ans: b) electrochemical signals
Biology & Microbiology
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The disease whose symptoms are most closely related to the symptoms of chronic syphilis is
A) Rocky Mountain spotted fever. B) latent Lyme disease. C) typhus. D) HPS.
Biology & Microbiology
The largest part of the brain of a mammal is the
(a) cerebrum. (b) cerebellum. (c) pons. (d) medulla oblongata.
Biology & Microbiology
A layer of permanently frozen ground is called permafrost
____________________ Indicate whether the statement is true or false.
Biology & Microbiology
The uterine cycle is also called the ovarian cycle
Indicate whether the statement is true or false.
Biology & Microbiology