<span>This is the condition under which he would classify them as belonging to different species - the two salamanders cannot mate to produce a fertile offspring. If these two lizards belonged to the same species, they would normally be able to breed and give birth to a fertile new "child." However, given that they are not of the same species, they cannot do such a thing, which is why this scientist classified them that way.</span>
DNA is copied during cell division
Answer:
Exchange of gases and other substances occurs in the capillaries between the blood and the surrounding cells and their tissue fluid
Hope this helps!
I'm really quite positive a fish & a rat couldn't quite mutate together