Plant cells have a cell wall so answer 1
<span>The fossils in the lower layers are older than the fossils in the upper layers.</span>
Humans and animals each eat, sleep, think, and communicate. the most variations between humans different animal species is our ability of advanced reasoning, our use of advanced language, our ability to resolve tough issues, and rumination, this implies describing your own thoughts and feelings.
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I believe its c because bio has to do with life