Answer:
The blood vessel from lungs to heart is pulmonary vein which carries oxygenated blood.
Cell membrane is a thin line.it controls the movement of materials into and out of the cell. it is partially permeable,that is,it allows only certain materials to pass through.
Answer:
The north end of Earth's axis is tilted toward the Sun
Explanation:
Goku is stronger than vegeta
A virus can be inside a body without showing up
