I think blockchain can survive without bitcoin, Why because blockchain build to any app can transact to other cryptos. We know that BTC can affect blockchain if they have no support or downfall of bitcoin but blockchain indeed can survive without bitcoin thats i knew about it.

Yes, because as I know bitcoin is created by using block chain so block chain is the first one ever created before bitcoin, and as of now there are a lot of things/project upcoming and rising using the blockchain technology. Block chain is the main foundation in all coins/tokens and altcoins.

Block chain will survive and it will live forever. You should not worried about it. Its just a platform where bitcoin technology doing marketing on it. Block chain isn't based on bitcoin its just helping it. I would like to say bitcoin helps a lot for block chain. Most of internet users are now aware about this technology. There's a lot of projects are in future and will work with block chain. Even if bitcoin dead there's still two coins ETH and BTCash to look out for.

Though block chain is Avery big crypto wallet and like almost all crypto transactions takes place in the block chain so we can say that block chain technology doesn’t completely depends on bitcoin only but still there is a lot that depends on bitcoin only, bitcoin is a very huge crypto currency among all and yes we can say one thing for very sure that not entirely but still almost block chain technology depends on bitcoin only and I personally think that it could not survive without bitcoin.

 I think the Bitcoin never would be replaced or outdated or other kind of beat by another cryptocurrency, the only thing that can be possible, is when bitcoin will lose their price, and some other cryptocurrency will be on the first place.

I think it could be ,because all of the token now or as we know is crypto is using blockchain now,so if the bitcoin will gone ,there still a chance that many of those token will still alive.

Yes it will survive. Bitcoin is their one of their projects where there are more than millions who using it. Even without bitcoin in blockchain. Blockchain can more provide and create more coins that can be use as a cryptocurrency.

Even if bitcoin had a large part in building blockchains popularity, block will still survive. It's not just bitcoin is the only one that is built on blockchain. there are other and in the future, there will be utilization of the blockchain technology

Considering the fact that Blockchain is the unique technology, whereas Bitcoin is just one of the numerous alternatives, the answer is obvious: Yes, it can and it will, should anything crop up...
I don't think the whales or whoever has a great deal of BTC would let it just happen, but...