Question

how do you appreciate the fact of that a animals,an, and trees are made of cells , which are very small and we can look at them through microscope

Answer 1

By seeing both of the cells of an animal and plants we find there is a difference between them. The fact is that in plant cell chlorophyll is present whereas in animal cell it is not present. plant cell contains cellulose and in animal cell, cell wall is present. And, thus we can see them by microscope by different experiments.