HUMANS
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Scarily enough that is untrue. There are only 64 million humans in England and Scotland.
They are vastly outnumbers by...Insects...
But depending how far down the microscope you want to go, viruses are lifeforms and bacteria are plant forms. There are millions of virus cells on your skin at any one time and around 2lb of your body weight is bacteria!
Life forms are indeed related. The reason is due to all life forms starting out with a single, unicellular common ancestor, with that common creature radiating into multiple forms to take advantage of its environment.
While carbon-based life forms are the most common on Earth, it is theoretically possible for non carbon-based life forms to exist. However, there is currently no evidence of such life forms on our planet.
glycolysis
Signs or billboards
Charles Darwin
It would stand to reason that in populated areas, the most common life forms would be human beings. Amoebas, single cell organisms, are also prolific in most areas.
The most common elements, in order, are carbon, hydrogen, oxygen, nitrogen, phosphorous, sulphur.
deer, ants, dogs, cats, and squirrells
All life on Earth shares a common genetic code, known as DNA, which determines an organism's traits. Additionally, all life forms require energy to grow and reproduce, often obtained through nutrient intake. Lastly, the presence of cells, the basic structural and functional unit of living organisms, is a common characteristic amongst all life forms on Earth.
An exobiologist would study life forms in distant planets, A common occupation in Sci Fi.
it mean that science is a good thing to do for life
they both had to worck and they came for a better way of life