<span>Vesicles are used to transport items in many different circumstances, so I'm not quite sure how to answer your question. Vesicles are used when transporting to and from the golgi apparatus, also when transporting molecules to lysosomes. They are even used when undergoing exocytosis. Basically, they are used to carry items/molecules/wastes around within cells
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B is correct. Krypton is a noble gas which has a full outer shell of 8 electrons and is generally unreactive because of it.
Highly unlikely both parents have to be colorblind
The answer is D because the layers all the way at the bottom had to be there for other layers to be built on top
