What is protein? What is protein? What is protein? What is protein? What is protein?

A protein is a macromolecule. It's a natural enzyme, which means it speeds up chemical reactions. Proteins are used to build muscle, regulate organs, and provide structure to the body.

Hope this helps :)

complete the square on the right side of the equation;

-5(x + 0)^2 + 15

answer: d. y = -x^2 + 15

explanation:

the fossil record extends back to a dog-like ancestor some 55 million years ago, which gave rise to the first horse-like species 55 to 42 million years ago in the genus eohippus.