問題詳情

48.It takes much longer for sex hormones and other steroids to produce their effects than it takes for nonsteroid hormones.; Why? |
(A) steroids are bigger, slower molecules
(B) steroids usually must be carried longer distances by the blood ^
(C)steroids cause target cells to make new proteins, which takes time
(D) steroids must relay their message via a; second messenger
(E) it takes longer for endocrine cells to make and secrete steroids ^

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