Prokaryotic cells doesn't have a nucleus.
Answer:
the amount of fossil fuels that are available will eventually decline
Answer:
Oxygen is required by all cells for cellular metabolism and circulating blood must be well oxygenated for maintenance of life. Carbon dioxide is a waste product of cells and must be eliminated or a serious change in pH can occur, known as acidosis.
Explanation: brainlist?
The oxygen distribution would be uneven and and there will be a decrease of oxygen level throughout the body if arteries began to clog
