Question

A number of glands secrete ______, which reaches sites of action through the blood for better coordination of the body.

विकल्प

• Enzymes

• Proteins

• Glucose

• Hormones

Answer 1

A number of glands secrete hormones, which reaches sites of action through the blood for better coordination of the body.

Explanation:

Hormones are chemical messengers secreted by endocrine glands. They enter the bloodstream and travel to specific target organs or tissues, thereby helping coordinate body functions. Enzymes, proteins and glucose do not fit this definition in the given context.