I believe he did that in order <span>to teach children how to interact with adults.
He was aware of his own surroundings in which children were impolite towards adults so he wanted to show what happens in the animal world. He wanted to portray young animals as polite and respectful, unlike human children who were unruly.</span>
Answer:
Organs are organised into organ systems. An organ system is a group of organs that work together to do a job. The circulatory system includes the heart, veins and arteries. Its function is to transport substances in the blood, around the body.