Final answer:
Blood functions include delivering oxygen and nutrients, removing waste products, maintaining homeostasis, and regulating body temperature.
Step-by-step explanation:
The primary function of blood is to deliver oxygen and nutrients to body cells, remove waste products, and maintain homeostasis. While blood does regulate body temperature by distributing heat throughout the body, it does not manufacture hormones. Hormones are produced by the endocrine glands and are transported in the bloodstream for delivery to target cells.