Humans, apparently. We seem to be able to manage or disprupt the colonizations of other organisms at will. Other choice - molds.
texas
No, humans are not the most abundant organisms on Earth. Microorganisms such as bacteria and archaea are the most abundant and diverse organisms on the planet. Humans make up only a small portion of the total biomass on Earth.
Eubacteria are the most common unicellular organisms; they are found everywhere on Earth.
Dolphins .
in water
Bacteria are generally considered the most numerous organisms on Earth. They are found in virtually every environment and play crucial roles in ecosystems, from aiding in nutrient recycling to influencing human health.
The air. Most organisms live in the air! others live in food and on your feet!!
All organisms on Earth are carbon based.
Organs might come in handy. And skin.
Bacteria.
bacteria
Pizza