Endocrine structures are composed of glands. Testicles are present in males, the pituitary is the master gland, and the ovary is present in females, are some examples. Thus, the correct matches are 1. c, 2. b, and 3. a.
What are endocrine structures?
Endocrine structures are the glandular organs that produce and secrete hormones to various and specific organs. The pituitary gland is the master gland that secretes a number of hormones that regulates the growth, organs, and other glands.
The ovary is the structure present in the female uterus that secretes progesterone and estrogen to balance fertility and reproductive development. Whereas, the testicles are the male reproductive organs that secrete testosterone essential for sperm production.
Therefore, the endocrine structure has glands to secrete the hormones.
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