Which is not true about eccrine/merocrine sweat glands?

Answer;

They begin to function at puberty (not true)

Explanation;

-The sudoriferous (sweat) glands are small tubular structures situated within and under the skin (in the subcutaneous tissue). They discharge sweat by tiny openings in the surface of the skin.  There are two types of sudoriferous glands; that is; eccrine and apocrin glands.

-Eccrine is the most numerous type that is found all over the body particularly on the palms, soles of the feet, and forehead. Apocrine is mostly on the armpits. They end in hair follicles instead of or pores.

chordata is the answer

the answer is false?