A) stimulate the central nervous system.
B) trigger cellular development.
C) stimulate endocrine tissue to secrete hormones.
D) stimulate growth and development.

A) Each endocrine gland secretes a single type of hormone.
B) Each endocrine hormone is secreted by a single endocrine tissue.
C) Each endocrine hormone acts on a single target tissue.
D) Each endocrine hormone activates a single type of receptor.
E) Many endocrine tissues have other non-endocrine functions.

A) the site of synthesis of steroids is distinct from their site of release.
B) the former are not stored, but instead are released upon synthesis.
C) the former are synthesized ubiquitously.
D) they don't have a specific receptor protein with which they interact.
E) none of these.