They can help people by making maps for countries so then they know where things are
Eukaryotic cells have a nucleus and prokaryotic cells do not.
Answer:
Since curly hair is a dominant gene, there is a good likelihood that one or two curly-haired parents will produce a curly-haired cutie. But genetics are tricky, and there's a chance that two parents with curls could carry the straight hair recessive gene, and pass that onto their offspring.
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