The gland that produces the largest number of different hormones and has the widest range of effects on the body's functions is the ________ gland.

A) thyroid
B) pineal
C) adrenal
D) pituitary

Pituitary Gland

A small gland at the base of the brain crucial for controlling various hormonal functions in the body.

Thyroid Gland

An endocrine gland located in the neck, producing hormones that regulate metabolism, energy, and overall growth and development.

Pineal Gland

A small endocrine gland in the vertebrate brain that produces and secretes the hormone melatonin, regulating sleep patterns.