Well I don't know much but I do know that they are different because unicellular can self produce which means they can reproduce without someone else but multicelluar needs someone else to reproduce
Trees blowing in the wind, bees landing on flowers, bunnies hopping on grass
I believe the example of an environmental variation in the above question is, A. Marge dyes her hair blue. Variation represents any difference between cells, individual organisms, or groups of organisms of any species caused by either genetic differences or by the effect of environmental factors. Environmental variation is the ability of an organism to alter its phenotype depending on environmental conditions.
The plant would no longer put out oxygen, and the concentration of carbon.
