Va graph will say that the amount of viruses taken it will 1000 viruses
The best answer is D, birds.
For more information and details on the way a bird's respiratory system works:
https://asknature.org/strategy/air-flow-patterns-facilitate-efficient-gas-exchange/
Answer:
oxygen side being slightly negative and the hydrogen side being slightly positive is answer.
Explanation:
I hope it's helpful!
