Answer:
The left atrium pumps blood into the lungs!
Explanation:
According to the cell theory the object should be made up of cell in order to be considered alive ..
Animals and plants need to get rid of carbon dioxide gas through a process called respiration. Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas.
When it reaches the carrying capacity?
