I Think it’s a b or d That’s The only Thing That I can Think of I hope This helps ya
I'd say that it is incorrect because each carbon atom should bond 4 times and all three carbon atoms in this structural formula only bond once. The reverse is true for hydrogen atoms. They only form one bond but in this structural formula two of them have four bonds. I don't know about nitrogen though.
What are your choices?
EDIT
The answer you are looking for would be wood.
Hope I helped!!
Answer:
Diffusion transports oxygen molecules from the capillaries to the bodily cells. Carbon dioxide flows from the cells into the capillaries as oxygen moves from the capillaries to the cells. Carbon dioxide is transported back to the heart and then to the lungs via the bloodstream.
