Question

examine the role of lipids in your body
fat around organs ✓ protection
completed
phospholipids ✓ structure of cell membranes ✓
completed
hormones in the bloodstream
done
energy
chemical messenger
structure of cell membranes

Explanation:

Hormones in the bloodstream act as chemical messengers. They are secreted by endocrine glands and travel through the bloodstream to target cells or organs, where they regulate various physiological processes such as metabolism, growth, and reproduction.

Answer:

chemical messenger