Question

bear bodies are adapted to efficiently store energy for times when food is scarce. this adaptation may help to explain how bear ancestors survived in cold climates in the pacific northwest. which of the following types of molecules are primarily used for energy storage in the bear?
a proteins
b lipids
c carbohydrates
d amino acids

Explanation:

Lipids are a type of macromolecule that serves as a long - term energy storage. They have a high energy density, meaning they can store a large amount of energy in a relatively small volume. Proteins have various functions such as structural support, enzymatic activity, etc., but are not the primary long - term energy storage. Carbohydrates are used for short - term energy (like glucose for immediate energy needs). Amino acids are the building blocks of proteins and do not function as a major energy storage molecule.

Answer:

B. Lipids