Plants produce their own sugars and other foods (autotrophic) by photosynthesis. Fungi are mostly decomposers that absorb nutrients by breaking down dead organisms and organic wastes, such as leaf litter and animal feces. Animals obtain food by ingestion, which is the eating and digesting of other organisms. It, is, of course, the kingdom to which we belong.
Now, we can move ever closer to understand “how a single microscopic cell develops into a complex plant or animal; how plants convert solar energy to the chemical energy for food; how the human mind works; how various forms of life network in biological communities such as forests and coral reefs; and how the great diversity of life on Earth evolved from the first microbes”.
The more we learn about life, the more fascinating it becomes, as progress on one question leads to even more questions that will captivate curious minds for decades to come. More than anything else, life is a quest, an ongoing inquiry about nature. Thus, Life is a continuum extending from the earliest organisms to the great variety of species that exist today. It is difficult for us to appreciate exactly how far back life has existed on Earth.