Question

how to appreciate the fact thatanimals,man and trees are made of cells,which are very small and we can look at them through microscope

Answer 1

When we take a small part of our cheek and stain it with methylene blue and observe it under microscope, then we can observe the small box like structures in it. These structures were actually cells. Similarly, when we take a cork from a bark of tree and stain it by Safranine stain and observe under a microscope, we can observe that there are structures in that cork. These structures were actually dead cells. Similarly, when we take a small skin of a animal and stain it using methylene blue stain and observe under a microscope, we can observe cells.

These cells makes up the tissue, tissue makes up organs, organs make up organ system and then, organ system finally result in the formation of living organism.