paleozoic ERA
Precambrian Era
Complex organisms evolved from simple organisms, so simple organisms evolved first.
the levels of biological organisation from broadest to smallest are: the biosphere, biomes, ecotones,ecosystems, communities, populations, organisms, organs and organ systems, tissues, cells, organells, and molecules
Don't ask for questions on your homework! You flamming piece of idiocracy
Ecology is important in the study of living organisms.
Precambrian Era
An ecosystem means the surrounding in which we liv with all other living organisms...in simple context to say is tat its our surrounding or Environment.
Apex question test which best describes the first organisms on Earth is simple prokaryotes.
It is as simple as this.ANIMALSPLANTS
Complex organisms evolved from simple organisms, so simple organisms evolved first.
the levels of biological organisation from broadest to smallest are: the biosphere, biomes, ecotones,ecosystems, communities, populations, organisms, organs and organ systems, tissues, cells, organells, and molecules
No for the simple reason that, on Earth, there are no ecosystems with only one single organism present. Perhaps in some hypothetical scenario an organism may survive without other organisms present, but it would be an artificially created/maintained environment.
There isn't, of course, a gap in time. There are, however, very few fossils intermediate between simple stromatolites (the first more or less multicellular organisms) and the first complex organisms found just before the Cambrian Explosion. This gap most likely exists because while predation already existed (organisms consuming other organisms), no organisms had yet developed an internal or external skeleton that could have been preserved at death. The very few organisms from that era that were preserved despite of this, were preserved in the form of molds and casts.
Don't ask for questions on your homework! You flamming piece of idiocracy
Ecology is important in the study of living organisms.
figure it out by yourself... its that simple...
Scientists data can only date back to when these simple, unicelluar organisms lived and thus believe other living organisms evolved through them.