Question

what type of lipid is estrogen?
steroid
phospholipid
triglyceride
wax

Explanation:

Estrogen is a steroid lipid. Steroids have a characteristic four - ring structure. Phospholipids have a phosphate group and are part of cell membranes. Triglycerides are composed of glycerol and fatty acids for energy storage. Waxes are esters of fatty acids and long - chain alcohols for protection (e.g., in plants). Estrogen's structure aligns with the steroid category.

Answer:

steroid