Electron;neutron
Because the neutron has no charge with mass.
the electron has a negative charge but no mass, because it is in the electron cloud.
Answer: Blood vessels
Explanation: Blood vessels consist of veins, venules, arteries, arterioles and capillaries that absorbs nutrients and minerals from organs and transport them to tissues and cells. It also transport oxygen and carbon dioxide to and from the heart to the lungs.
Therefore blood vessels are found in almost every organ, tissue and cells in the body to deliver nutrients, remove waste and filter lymph as part of immune system.
Any GUY wanna talk, im a boy whos 19 and who loves to work on cars and play in the woods
Answer:
Fox
Explanation:
The fox receives all the energy from what it's pray ate and so on.
I believe the answer you're looking for is Evolution.
