question archive 1) Water-soluble hormones, such as proteins and peptide hormones, activate target cells using _______
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1) Water-soluble hormones, such as proteins and peptide hormones, activate target cells using _______.
a. direct gene activation
b. the second-messenger system
c. steroid hormone action
d. diffusion
2. The most common stimulus for prodding endocrine glands into action is ________.
a. hormonal
b. humoral
c. neural
d. direct gene activation