The heart is classified as an organ.
Answer:
Respiration begins at the nose or mouth, where oxygenated air is brought in before moving down the pharynx, larynx, and the trachea. The trachea branches into two bronchi, each leading into a lung. Each bronchus divides into smaller bronchi, and again into even smaller tubes called bronchioles.
Answer:
insulin and Glucagon If blood glucose levels rise (for example, during the fed or absorptive state, when a meal is digested and the nutrient molecules are being absorbed and used), the beta cells of the pancreas respond by secreting insulin.
Explanation:
Build up a wall around the lagoons a little bit to keep it from spilling over make the wall about 5-ish feet tall and made of concrete. as for the smell i can't quite figure it out but if they have air filtration systems and somthing that releases a good smell it will at least help the smell be a little better.
If someone answers this I will believe in humanity again