icario4710
14.10.2019 •
Biology
What does na+ represent? select all that apply. a positively charged sodium ion a sodium ion that has lost an electron a negatively charge sodium ion a sodium ion that has gained an electron a neutral sodium atom
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Ответ:
Ответ:
the cell membrane
Explanation: this is the interface between organism and environment, and alters permeability to various ions and molecules to maintain the internal envitonment.