An endocrine gland is

A. required for remodeling bone.
B. the site at which hormones are produced and released into the blood.
C. where neuronal signals are generated.
D. restricted to the production of growth factors.


B. the site at which hormones are produced and released into the blood.

Biology & Microbiology

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The ____ contain(s) oxygen-poor blood

a. left ventricle b. left atrium c. aorta d. pulmonary arteries e. pulmonary veins

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Synovial membranes are found in

a. the stomach. b. the heart. c. the lungs. d. tendon sheaths and joint capsules. e. ureters and the urethra.

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Proteorhodopsin consists of a single polypeptide chain. What is the highest level of structure found in this protein?

A) primary B) secondary C) tertiary D) quaternary

Biology & Microbiology

NAD and FAD act as _____ carriers

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology