Final answer:
Vitamins cannot be made by the human body and are not classified as hormones.
Step-by-step explanation:
False. Vitamins are organic substances required in minute quantities in the diet to maintain the normal physiological functions of the body. They cannot be synthesized by the human body, which is why they need to be obtained from the diet. However, vitamins are not classified as hormones. Hormones are chemical messengers produced by various glands in the body and are involved in regulating various bodily functions. Examples of vitamins include vitamin C, which is important for the immune system, and vitamin D, which is involved in calcium absorption.