HELP PLEASE!! One function of lipids that is incorrect is:
1. energy
2. insulation
3. prevent water loss
4. make proteins

 4.) make proteins.

Explanation:

Lipids perform functions both within the body and in food. Within the body, lipids function as an energy reserve, regulate hormones, transmit nerve impulses, cushion vital organs, transport fat-soluble nutrients, protection, insulation and cell division

The lipids of the SC are structured in the intercellular spaces of the mammalian epidermis in ordered layers, called lamellae, which have been postulated to prevent water loss.

Membrane lipids participate in the interaction of proteins with the cell barrier. They don't make the proteins.

I think there's a typing error in choice 1. It should be 'energy reserve' - which is a function of lipids.

the oxygenated blood then leaves the lungs through pulmonary veins, which return it to the left heart, completing the pulmonary cycle. this blood then enters the left atrium, which pumps it through the mitral valve into the left ventricle. from the left ventricle, the blood passes through the aortic valve to the aorta.

deoxygenated blood leaves through the right ventricle through the pulmonary artery. from the right atrium, the blood is pumped through the tricuspid valve (or right atrioventricular valve), into the right ventricle.