What he did was say that evolution happened that over time the birds seemed to be changing
I would think it would be C
Answer:
Explanation:
I feel like it's trophic level
The answer is the nasal cavity. It is a large air filled space above and behind the nose in the middle of the face, it is lined with hairs and mucus membrane. The function of the nasal cavity is to warm, moisturize, and filter air entering the body before it reaches the lungs.