D bc the product u using was used b4 so if something is used b4 den u cnt use it again
A group of cells working together to do a job are called tissue
They will have different traits
Answer:
Most living things need oxygen to survive. Oxygen helps organisms grow, reproduce, and turn food into energy. Humans get the oxygen they need by breathing through their nose and mouth into their lungs. Oxygen gives our cells the ability to break down food in order to get the energy we need to survive.
Explanation:
