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It would be called xenobiology if any such life forms existed (and they may, but).
Adam And Eve
a shark and a snail
155.92yrs
Not sure. If they didn't leave a fossil how would we know that they existed.
All living beings would not survive without eating food. Before humankind existed, it was just organisms. If those organisms did not eat, they would have died off.
Correct Answer is: Living organisms MUST be involved.
There are no non-living organisms, unless you mean dead organisms.
All living organisms have to have a host to create other organisms. This includes micro organisms as well as bacterial organisms
There would be no living organisms found if no oceans existed on Earth. Earth's oceans are responsible for producing living things on the planet.
All living things are organisms. There is no such thing as a living cell that is not an organism.
Single celled organisms are examples of living cells that are organisms. Most other living cells are parts of living organisms, but could not survive long on their own.