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those species that are found only in a particular area or region and nowhere else on Earth.
the kingdom of multicellular organisms that contain chlorophyll and make their own food by...
outgrowths of neurons (nerve cells) that transmit nerve impulses towards the cell body.
simple chemical substances needed by the body in relatively small amounts for normal growth and...
water that is found on the surface of the earth, e.g. in rivers, streams, and lakes etc.
the structure that separates the right ventricle from the pulmonary artery. It prevents the...