Chapter 1, Problem 6RA

Sweat is secreted by exocrine glands. This means that

$\begin{array}{l}\text{a}\text{. it is produced by endocrine cells}\text{.}\\ \text{b}\text{. it is a hormone}\text{.}\\ \text{c}\text{. it is secreted into a duct}\text{.}\\ \text{d}\text{. it is produced outside the body}\text{.}\end{array}$