I would say that she didn't correct her wrong answers after the first test, therefore making her confused on the second.
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.
Doses are difficult to control because of individual lung capacity’s
I think the correct answer from the choices listed above is option A. Stress response can keep you alert and sharpen your concentration. This is because short-term stress response can keep your body ramped up and prepared for physical action and a short-term increase in bodily function (those related to flight and fight) is present.
Answer: TRUE the skin is our largest organ
