The organ that serves as the starting point of the respiratory system would be the nose. It is where respiration starts by taking in the air from the atmosphere and it also ends here by breathing out carbon dioxide a waste gas produced from the processes in the body which is not utilized by our body.
Answer:
NO
Explanation:
the pigs will never be able to fly as the birds have:
wings – these enable the force of lift.
lightweight, smooth feathers – this reduces the forces of weight and drag
streamlined body – this helps reduce the force of drag (a shape that lowers the friction drag)
light bones – a bird’s bones are basically hollow with air sacs and thin, tiny cross pieces to make bones stronger – this reduces the force of weight
Meanwhile the pig is obviously heavier, having a stronger force of gravity, and does not have the same type of "lightweight" bones that the birds have.
The answer is almost definitely A seeing as the others are either based on the need to breathe (d) or body parts (b and c). Hope this helped. <span />
