Answer:
1. Providing structure --> Collagen makes skin strong yet flexible.
2. Maintaining homeostasis --> Insulin controls the concentration of sugar in the blood.
3. Fighting Disease --> IgA prevents the buildup of viruses and bacteria in the gut.
4. regulating chemical reactions --> Pepsin works in the stomach to speed up the breakdown of food.
Answer:
The hemoglobin of horse has 60% lower than the human's hemoglobin
Answer:A
Explanation:circulatory system functions
A is the correct answer to the question
