>>12122483X number of limbs are needed to be functional
Y number where Y<=X are needed for interacting with the environment.
Not including the head, mouth, or tongue humans have four limbs they use to interact with their environment.
Say cellular life is the easiest to come into being, from that you'd need to be multi-cellular, likely.
The planet likely gets decent light for heat from a star.
So it forms.
it creates features that are effective at specialized tasks, these can be considered essentuial structures or organs.
Sexual reproduction or a kind, assuming DNA is the easiest way to create and manage life, is most effective, especially for variation.
so a limbed being like we see commonly i most animals, and all intelligent animals, is very likely.
having many limbs cost a lot fo energy and would be indicative of their environment.
Four limbed fish succeeded most on our earth.
It'll need lots of competition to force it into the niche of intelligence.
it needs to be social probably to develop even more intelligence and commutative work.
it probably needs to be a certain size too.
but aside from that how it looks exactly would be based off its environment.
it's unlikely it'll look like modified humans.
