Answer:
Karyogram of a male with Down syndrome.
Answer:
Sand
Explanation:
Space, water, energy, and air are all needed for an organism to survive. Sand is just somewhere an organism could accustom to live in that environment.
Without agriculture my life would be different as I would not have acsess to all these fresh fruot and vegetables we have today. Our diets would have to adapt to more unnatural food, and our bodies would not be as healthy as they are now.