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.
The answer is A because it is in order( idk how to explain but its A)
Answer:
Well to give a good example of "ecosystem increases its biodiversity" we must first define
biodiversity
"the variety of life in the world or in a particular habitat or ecosystem."
SO an example would be like bringing a frog from china to a pond in amercia,but this frog is new and there arent any frogs from the speicus
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Found within wet and dry tropical forests, it grows in a variety of soil types. Since the 1500s, mahogany has been a prized timber product—a building block for high-quality furniture and musical instruments—valued for its deep reddish color, durability, and beauty
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