I'm not entirely sure on this one... But I think it's 1. cell division helps animals repair old cells..
like please
Answer: Organ replacement
Explanation:
Nitrogen and hydrogen
N2 +3 H2 ---> 2NH3
hope that answers the question:)
Wind<span> is a </span>form of solar energy<span>. Winds are caused by the uneven heating of the atmosphere by the sun, the irregularities of the earth's surface, and rotation of the earth.</span>
Down syndrome, turner syndrome, Klinefelter syndrome, and fragile X syndrome.