Mutualism is when two organisms are involved and they both benefit where as parasites is when two organisms are involved, but one is benefitted while the other is harmed.
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Answer:
I think it is D
You can report me if I am wrong
The answers are - creating laws to regulate the amount of pollution, -planting trees at the same rate they are being cut down, -teaching citizens about water consumption and waste.
All three of these measures help people understand the importance of sustainability as well as ensure that on a governmental level, the required steps are being taken that a nation will witness increased dependance on renewable energy sources and not fossil ones.
The theory would be endosymbiont theory. It was developed on the idea that some eukaryotic organelles come from prokaryotic organisms. It is also known as symbiogenesis. This theory says that these organelles were first from prokaryotic cells that is living inside a host cell.
12 or 13 mostly 12 though