Excretory Products Their Mode of Excretion, , Chapter 19, ,, ammonia, class11, biology, cbse

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These are the end products of protein digestion absorbed into the blood from small intestine. Certain invertebrates, like some molluscs Unio, Limnae, etc. ) and some echinoderms Asterias) excrete excess amino acids as such. This is called ammonotelic excretion or aminotelism.