Atria is a large part of the heart so too big for cells; arteries & veins lead away or to the heart.
Capillaries are the smallest vascular structures that allow materials to be exchanged easily between cells.
Long term I think because it takes a while for forest to be filled again
Where’s the graph? You need to have the picture uploaded unless I’m just missing it.
Answer:
I think it's true but I may be wrong
Hope this helps:)
