Quote:
Originally Posted by thomasracer56
Scientifically, a species is in the order below genus.
here's an easy way to remember it, tough it's missing domain:
King Phillip Came Over From Great Spain.
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My bio teacher got us to remember that as King Philip Came Over For *** Sex.
It was much easier to remember that way.
But...your response doesn't really answer tore's question.
I'm a supporter of the reproductive isolation bit. Unless someone finds an organism (say, an amphibian) that can breed with a totally different organism (say, a mammal) and produce viable offspring, I'll stick with that.