Question

Q3. What are ductless glands? What is the term used for chemical secretions of ductless glands which are
responsible for changes taking place in the body at adolescence ?

Answer 1

Answer:  Ductless glands are glands that secrete their product directly onto a surface rather than through a duct.  The pineal gland, the thymus gland, the pituitary gland, the thyroid gland, the spleen, and the two adrenal glands are all ductless glands. Endocrine glands are ductless glands and release the substances that they make (hormones) directly into the bloodstream.

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Explanation:

Answer 2

Explanation:

Ductless glands are known as endocrine glands. they secrete hormones that regulate the changes in the body at adolescence. for eg., the thyroid gland produces the thyroxine hormone.

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