Explanation:
........akaososoksksnaoaoawkoepskajajsoaoakwjej
Answer:
The cornea is the only part of a human body that has no blood supply; it gets oxygen directly through the air.
Explanation:
I'm not sure what the options were, but a cell would die if it didn't have enzymes. :)
Blocks, Since water blocks sunlight, photosynthesis can't occur in deep waters, because sunlight is required for photosynthesis.