Answer: The skeletal system and the circulatory system
Explanation:
The trunk of the tree helps in transporting the water and food materials to various parts of the plant.
The trunk of the plants provides it support and allows the movement of the substances from the roots to the other parts of the tree.
The skeletal system of the human body provides structural support to human body. The circulatory system of the body helps in transporting materials fro one part to another in the body.
a. True
b. False
Answer:
true
Explanation:
B) heart
C) lungs
D) trachea
Answer:
The correct answer would be the C) lungs.
Lungs are the pair of air-filled spongy organs.
They are mainly associated with the exchange of gases (carbon dioxide and oxygen) in the body.
The alveoli are the group of tiny air-sacs present in the lungs which form the site of gas exchange.
The oxygen from the alveolar site diffuses into the blood and carbon dioxide from the blood diffuses into the alveolar site.
The oxygen is then transported to all cells of the body with the help of circulatory system whereas carbon dioxide is removed out of the body as a part of exhaled air.