The type of system depicted in the accompanying figure is a(n):



a. open circulatory system.

b. vertebrate circulatory system.

c. closed circulatory system.

d. lymph system.

e. open digestive system


a

Biology & Microbiology

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Which enzyme is contained in human saliva?

a. chymotrypsin b. pepsin c. trypsin d. amylase

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Following a nerve impulse, what triggers the opening of plasma membrane voltage-gated Ca2+ channels?

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G2 phase

What will be an ideal response?

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