Question

------------glands are the ductless glands.

Answer 1

Endocrine Glands:

1. Hormones are the chemical messengers secreted by special tissues and glands.
2. They are secreted by specific glands and then directly poured into blood, and reach their targets by being transported by the bloodstream.
3. Such glands that do not store their secretions in ducts are known as endocrine glands, eg. pituitary gland, thyroid gland.

Final answer: Endocrine glands are ductless glands.