Answer:
Cells are the basic building blocks of living things. The human body is composed of trillions of cells, all with their own specialised function.
The epiglottis covers the larynx to prevent food from entering the lungs.
Answer: This is an example of Homeostasis!! :D
Explanation:
Deforestation is the removal of trees and plant life from a given area. with the absence of plant life comes the absence of photo-synthases. This causes a drop in the production of oxygen.