Answer:
The big thing is that, in countries with high life expectancy, their old people are more likely to feel engaged. This can be a cultural difference, or it can be geographical; old people are more likely to do things if they can physically get around.
hope it helps
Answer:
tissue fluid.
Explanation:
the role of tissue fluid is to transport nutrients from the blood to the cells,and to carry Corbin dioxide and other wastes back to the blood.
