Answer:
spend time removing introduced species, which can mean physically weeding invasive plants or trapping invasive animals. ... Others work to reduce harvesting directly or to reduce the incidental catch of nontarget species.
What's true of any eukaryotic cell, because whether or not they are in a multicellular organism they still contain this one characteristic, is that they contain a nucleus. A nucleus is a membrane-bound organelle inside a eukaryotic cell, and this cannot be found in any prokaryotic cells such as bacteria or archaeans. The other three characteristics can all be found in bacteria and archaea.
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