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
I think the scientist distinguish whether an entity is living or non living be describing the single unit of life, the live cell that could multiply, reproduce and generate trough time also through ages. I hope you are satisfied with my answer and feel free to ask for more
Answer:
Shoreline Protection.
Nursery.
Threatened and Endangered Species.
Explanation:
Does that help?????
Answer:
a.
Explanation:
caribou maternity pens are enclosed areas created to care for pregnant female caribou and their offspring. As well as allowing the mothers to take care of their offspring in a safe and nurturing condition. Therefore the hikers passing by the pens most likely would see Pregnant females and young caribou within the pens.