Was The Transition From Unicellular To Multicellular

[arildno]

1.Nereid; you might just as well say that out of 3 possibly life-sustaining planets in our solar system (Venus, Mars, Tellus), one shows an abundance of life.

2. We do not know the proportion between possibly life-sustaining planets and the planets which cannot possibly sustain life (for example gas giants, planets too far from or too close to the star) in any planetary system.
In our system, that proportion is 1/3

3. Current planet detection techniques are biased towards detection of huge gaseous planets close to the mother star; we cannot on basis of these data say anything about the prevalence or rarity of Earth-like planets in the galaxy.

4. This is of course entirely speculative, but the "reasons" here are no less valid (or rather, no more invalid) than what you've given.

 

[Happeh]

Bound to happen?, was it inevitable since multicellular organisms has a lot more advantages than unicellular organisms.

Yes. The motivating intelligence can not do anything with a cell. All a cell does is float. If you want to do anything, you need a more complex structure. Multicellularar was inevitable as were all the other creatures developed by evolution. Intelligence want's to manipulate it's environment.