It is known as structurlism
C planting trees. It adds oxygen
Maps are examples of physical models
I think it's true hope I helped:)
Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not. ... Plant cells usually have one or more large vacuole(s), while animal cells have smaller vacuoles, if any are present.
