The answer to your question is called terminal velocity.
1. Stomach, Breaks down food with acid located in the stomach
2.Mouth, Chews and Grinds food down. Allows the breakdown of enzymes
3.Kidneys, Take out any unhealthy/unneeded substances in the food.
4. Large Intestine, The formation of feces.
Answer:
is about 4.6 billion years old
Meiosis produces four genetically different haploid cells.