Question

grizzly bears can survive through the winter by entering a state called hyperphagia in the fall. hyper means \over\ and phagia means \hunger\. every fall, bears stock up on fuel by consuming up to 20,000 kcal per day to prepare for hibernation. in this state a bears only focus is finding food for itself and any cubs it may have alongside. the goal is to bulk up with enough fat stores to stay healthy throughout the winter. what type of diet would be best in order for the bear to survive the winter?
◯ a diet high in protein.
◯ a diet high in lipids.
◯ a diet high in nucleic acids.
◯ a diet high in carbohydrates.

Explanation:

Lipids are a concentrated source of energy. During hibernation, bears rely on stored energy. A diet high in lipids would provide more energy per unit mass compared to proteins (which have other functions like building tissues) or carbohydrates (which are used for immediate energy in many cases). Nucleic acids are for genetic information and not a major energy - storage molecule.

Answer:

A diet high in lipids.