Number one is the correct answer
The cytoskeleton fibers that are primarily responsible for moving a whole cell around are <span>Microfilaments.
These are the </span>filament type structures present in the cytoplasm of eukaryotic cells. They are mainly composed of polymers. The main important <span>functions of microfilaments are </span>cytokinesis<span>,</span><span> changes in cell shape, </span>endocytosis<span> and </span>exocytosis<span>, cell stability, etc.</span>
Answer:
Their still growing, developing, and often play and hurt themselves in a way that adults don't.
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