The condensation of water vapor formed the early oceans. It is an important part of the water cycle. It is easy to eliminate the other answers in this question. It can't be meteorites, living organisms, or nitrogen.
Science experiments can be like “measuring how heart rate is effected by music “
Answer:
(C) each cell of an organism has all the genes needed for development.
Explanation:
According to my research on studies conducted on Genetics, I can say that based on the information provided within the question this illustrates that each cell of an organism has all the genes needed for development. If this were not the case then the frog would either not be born or would be born with serious abnormalities because the cell did not have the necessary genes needed for the frog to form correctly.
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Answer:
You could use a magnet to collect the iron, and then wash the sawdust off. Hope this helps :)