Number 1: The Circulatory System is a vast network that contains organs and vessels.
number 2: Arteries have a thick wall which helps a powerful pressure from the heart.
number 3: Without the Circulatory System the body wouldn't be unable to maintain a internal environment.
number 4: The Circulatory and Respiratory system both have gas to help a or animal live in there internal environment.
number 5: Blood vessels brings oxygen to the tissues and absorbs carbon dioxide and other waste products to clear the lungs. And with out oxygen the tissues won't absorb carbon dioxide to clear out the lungs.
number 6: D
Letter B is correct answer that what I am thinking
Answer:
The more sediment accumulates, the more pressure is put on the lower layers
Explanation:
That is not true because one you eat your body has to work together to digest the food.
Answer:
It means the organisms ability to survive and reproduce in an specific environment.
Explanation:
