रक्त के कार्यों का उल्लेख कीजिए।
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1
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blood is in which oxygen trevel in our body.
There are two types of blood cells :
1-Red blood cell.
2-White blood cells.
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An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life. Ecosystems contain biotic or living, parts, as well as abiotic factors, or nonliving parts. ... Ecosystems can be very large or very small.
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