The answer is B.
Veins are blood vessels that carry the blood towards the heart. The Vessels that carry the blood way from the heart is called artery
The S<span>canning Electron Microscope or SEM shows in 3D </span>
Answer:
Pokaryote is the right answer.
The second one probably because of the law of conservation of mass where mass is not created or destroyed, so the mass has to be the same.
