Answer:
c.
Explanation:
heredity is based off of the punnet square in it has 2 traits of each of your parent and comes at random not 1, 2, 3, 4
Im pretty sure its C the other answer don't make sense
This is the site where oxygen and co2 is transferred in the body, co2 is expelled by pressure equalization from erythrocytes, and o2 is recovered and braught back to the heart to be ejected to the rest of the body.
It is called hemochromatosis