iron and polar molecules
A buffeer is a solution that can resist pH of an acid or basic components.
Answer:
Every cell in the human body contains protein. The basic structure of protein is a chain of amino acids. You need protein in your diet to help your body repair cells and make new ones. Protein is also important for growth and development in children, teens, and pregnant women
Explanation:
Look up Dawrin's theory of evolution. Basically, fossil records show how life forms change over time through evolution.
Answer:
cell membrane is the answer
