Answer:
All living things are made up of cells. Some of the smallest organisms, such as yeast and bacteria, are single-celled organisms, but most plants and animals are multicellular. While both plants and animals are made up of cells, the two types of cell are markedly different in ways that can be readily observed. Many of the differences between plant and animal cells are visible under a microscope, and it's relatively straightforward to distinguish between the two.
