Is Fundamentalism biological?

I was reading over my sister's spelling word sentences the other day. Most of her sentences were quite simple, "I'm in the third grade." Then I read

"I'm saved from the fier."

I said, "Hey, you spelled fire wrong... it's f-i-r-e." A second later the meaning of the sentence hit me and I started cracking up. "Did you mean 'I was saved from the fire'?"