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→3) Down syndrome (sometimes called Down's syndrome) is a condition in which a child is born with an extra copy of their 21st chromosome — hence its other name, trisomy 21. This causes physical and mental developmental delays and disabilities.
→6) Organs of excretion include the skin, liver, large intestine, lungs, and kidneys. All of them excrete wastes
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hii payal I always ask reason to follow now it's your turn to tell
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