What must happen before a cell can begin mitosis? View Available Hint(s) for Part A The sister chromatids must be separated. The nuclear envelope must

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

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i do believe the correct answer would be the third one. location c, because earth is tilted away from the sun at this time

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the statements that apply here about binary star system are

"have stars that might appear to wobble"

"often have one star that is brighter than other"

a binary star is a star system consisting of two stars revolving around their common barycenter. systems of two or more stars are called multiple star systems.