The atmosphere is known for its multiple layers, and it's characteristic in each layer. We are known for living in the troposhere, but everything ese in unaccessible without air/spacecraft. The only limits are the limited oxygen on some of the layers, (i.e. Mesosphere) and some even case meteors to have that fire trail/effect. Once past the exosphere, you have officially reached space!
c. metaphase
hope it helps :)
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It is a mutation in the CFTR Gene that is passed down from parent to child.
