Explanation:
Explanation:

Mammalian blood performs many vital functions, but producing hormones is not one of them. Let's go through each option:

Functions of Mammalian Blood:

#A. Engulfing bacteria
- True. This is a function of white blood cells, especially phagocytes, which defend the body by engulfing and digesting harmful microbes.

#C. Transporting ureas
- True. Blood carries urea, a waste product of protein metabolism, from the liver to the kidneys for excretion.

#D. Distribution of heat
- True. Blood helps regulate body temperature by distributing heat generated by metabolic processes throughout the body.

#E. Transporting glucose
- True. Blood transports glucose, an important source of energy, from the digestive system or liver to body cells.

Not a Function of Blood:

#B. Production of hormones
- False. Hormones are produced by endocrine glands (e.g., pituitary, thyroid, adrenal glands), not by the blood.
- Blood only serves as a transport medium for hormones — it does not produce them.


Summary:
While blood transports hormones, it does not produce them. Hormone production is the role of endocrine glands.