The atomic number corresponds to the number of ________ in a specific element, while the atomic weight corresponds to the number of ________ in a specific element.
A. protons; protons and neutrons
B. protons and neutrons; neutrons
C. protons; neutrons
D. neutrons; protons
Answer: A
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The main signaling cascade for cell division and differentiation is the ____ cascade
a. cAMP b. MAP kinase c. phosphoinositol d. phospholipase C e. calcium-calmodulin
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A. A B. B C. C D. D E. E
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