They are not able to reproduce independently
They do not use energy for metabolism of any kind
<span>Their virulence is maintained by non-living cultures
Hope this helps. ^.^</span>
The answer is true. Their strike can break aquarium glass and even split open human thumbs.
Animals absorb oxygen and release carbon dioxide in respiration and plants absorb carbon dioxide and release oxygen through photosynthesis.
I believe the answer you're looking for is cellular respiration.