From cattails, to cat-weed, sun flowers to sequoias, these oxygen producing organisms are essential to our way of life. They are made up of many Eukaryota cells and make their own food through the process of photosynthesis, a by product of which is oxygen, which we all need to survive. Plants are live on almost every continent excluding Antarctica. Plants are amazing at adapting to extreme conditions. Although they don't move, plants are extremely competitive. in the rain forest, when it rains, the plants race to absorb as many nutrients before it it washes away. Most plants are autotrophs. You have some like the Venus Flytrap and the Pitcher plant, that are also able to "eat" insects. We need plants to live, not only are they tasty, but they put out oxygen, will allows us to breathe..(thank you plants). Plants have many Eukarotic cells.