The grouping that includes turtles, lizards and snakes, crocodiles and alligators, birds, and bats is monophyletic.
Monophyletic taxon : A team composed of a collection of organisms, together with the most current frequent ancestor of all these organisms and all the descendants of that most latest common ancestor. A monophyletic taxon is also called a clade.
<span>The need for a polymerase that wouldn't denature at high temperature. Obviously, organisms that live in hot springs and the like will have adapted enzymes that can survive at these temperatures.</span>
