What increases the rate of metabolism in cells throughout the body?\nOptions:\n- (A) Thyroxine\n- (B) Smoking\n- (C) fever\n- (D) bioaerosols\n- (E) acetic acid\n- (F) sweating\n- (G) Power plants\n- (H) heat produced
Stream of thoughts:
(A)
Thyroid hormones increase the rate of metabolism in cells throughout the body.

Thyroxine, a thyroid hormone, is an aryl iodide.

Thyroxine increase the rate of metabolism in cells throughout the body.

.

So, the answer is (A)