There are many organisms that once lived on Earth but have since gone extinct. Some examples include every species of dinosaur, dodo birds, and golden toads.
An organism that once lived on earth but all of its kind have died out is an extinct species. Examples include dinosaurs.
its extinct
hi
They don't go anywhere. When tornado "leaves earth" it dissipates and no longer exists.
Pangea no longer exists, so you can't ask 'How big IS Pangea?' Pangea incorporated the whole land mass of earth.
compounds
Simple Prokaryotes
it moves The Earth itself considering its mass is not an organism nor it is a live being. A living organism is an entity that can generate another living organism. The Earth, as a celestial body comprises mainly its solid mass. All other living organisms on its surface do not makes part of the Earth as a celestial body once it may the be unique inhabited planet in the whole Universe. Therefore, the Earth is not a living organism, but a basis to all living organisms on it.
giraffe
We call such past organism "extinct".
its extinct
A species which no longer exists on planet earth because they all died for some reason or another. The dodo is an extinct organism.
dinosaurs
ants
They don't go anywhere. When tornado "leaves earth" it dissipates and no longer exists.
the bacteria of bacteria have lived on eath
The smallest organism on Earth is a nanobe
Pangea no longer exists, so you can't ask 'How big IS Pangea?' Pangea incorporated the whole land mass of earth.
I wouldn't say that an organism is 'primitive', it's much better to state that the organism is philogenetically old (or older in comparison to other organism). Such statement means that a species has been on earth for a longer period of time than others.
The Pangaea super-continent no longer exists because it has broken up into the continents that exist today, as a result of continental drift caused by convection currents in the earth's mantle.