Giving away roblo, x acc with 1000 rob. ux on it right now and alot of good stuff in games for a nitro type gold acc.

Most enzyme names end in the

Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled

Can i get the answer to this problem?