Answer:
the answer is D) a structure composed of a number of tissues that work together to perform a specific task.
Explanation:
all organs work together to keep us healthy. that's why they're called "organ systems." a system works together!
As a person ages their cardiovascular fitness tends to DECLINE.
Hey there!
I think the best choice would be Option C.
Have a great day!
This is important in the case of an emergency in which someone is in need to medical help immediately, such as for a cut off limb in which blood is escaping rapidly from the wound.
Hope this helps!
