Explanation:
Each hemoglobin molecule is made up of four heme groups surrounding a globin group, forming a tetrahedral structure. ... There are four iron atoms in each molecule of hemoglobin, which accordingly can bind four atoms of oxygen. Globin consists of two linked pairs of polypeptide chains.
Females are more likely to get through problems
A
Your self esteem is how you feel about yourself, low self-esteem meaning you don't feel good about yourself.
