Answer:
Erythrocyte
Explanation:
Erythrocytes, or otherwise called, red-blood cells are responsible for transporting oxygen and carbon dioxide to and from the cells and tissues. The reason for this is because of a protein called hemoglobin. The hemoglobin found in erythrocytes allow for transportation of oxygen + CO2 to and from cells.
The bronchi are where air passes from the trachea.
Answer:
All organic molecules are made up of carbon compounds so we can say that the main atom or molecule is carbon.
hope it helps!
D. Muscles are the only tissue in the body that can contract, and are responsible for all movement.
