Liver problems. Failing liver. Something with the hippocampus getting smaller, which will cause your memory to leave you.
Answer:
The cilia is one of the things that act defensively in the respiratory system.
Explanation:
It propels a mucus-like liquid that covers the airway which traps pathogens (potentially infectious microorganisms) and other particles, preventing them from reaching the lungs.
The Use of nitrogen fertilizers near the lake is your answer.
The answer would be the cell wall or the cell membrane
