Answer:
C: Transmission Electron Microscopy
Explanation:
Transmission Electron Microscopy shows the complex internal membrane structure of mitochondria
Answer:
clean
Explanation:
privacy comfortable easy to use
Oxygen and carbon dioxide travels to and from tiny air sacs in the lungs, through the walls of the capillaries, into the blood. Blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs.

B. trenches .......................
Respiratory system and the cardiovascular system