Biology

The group of organic molecules that serve as long-term energy storage and waterproof coverings is: B.lipids.

Lipids, especially fats (triglycerides), are primarily used for long-term energy storage. They contain more energy per gram than carbohydrates and are stored in the body for later use. Additionally, lipids like waxes and oils serve as waterproof coverings for plants and animals, helping to prevent water loss.

Here's a quick breakdown of why the other options are not correct:

A.Proteins: Proteins are primarily involved in structural and functional roles in cells, such as enzymes,...