The answer is blood type bc you won’t know their blood type by just observing them
Answer:
They are in organic
Explanation:
Vitamins are organic compounds derived from plants or animals that are needed in the body at small quantities.
They help in the body's metabolism since they enhance enzymatic activities and can act as co-factors.
They are essential for good health such as vitamin A helps in improving eye sight.
Lack of certain essential vitamins can lead to disease ,lack of vitamin D can lead to Rickets.
Homeostasis, aka your body maintaining life and the right amounts of stuff.
The actual genetic makeup of an individual is its genotype.