Answer:
must be mined from underground
Please mark me as brainliest
1. Air enters the nostrils.
2. Air passes from the trachea to the bronchi
3. Air diffuses from the alveoli to the blood cells.
4. Oxygen enters the blood cells.
5. Blood transports oxygen to other cells.
decreased ability to survive changing conditions
Hope this helps
I think the answer is segment of DNA is copied into RNA. HOPE THAT HELPS
