A savanna is a type of biom and there are different types of biomes one different type is the grasslands, or the prairie
Answer: During the Cambrian Explosion of Animal Life
Fats are used for energy after they are broken into fatty acids. Protein can also be used for energy, but the first job is to help with making hormones, muscle, and other proteins. Broken down into glucose, used to supply energy to cells. Extra is stored in the liver.
The answer to the question is A