Lungs have a pulmonary circulation
Breathing, burning something/ fire, or i guess photosynthesis
Answer:
The answer is (C) :P 211111111
I believe the answer is Gene splicing because they remove specific genes in order to create a transgenic organism.
I hope this helps!
Answer:
Humans have greatly increased the level of in the atmosphere. O A. argon B. oxygen O . C. carbon dioxide O D. nitrogen
=carbon dioxides