Speaking of the Ohio lesson plan, the brief "challenging answer" for endosymbosis ends with the following quote.
Although some bacterial cells (prokaryotes) can occasionally live in eukaryotes, scientists have not observed these cells changing into organelles such as mitochondria or chloroplasts.
Scientists also have not observed my parents having sex. Therefore, I must be a robot like Dembski.
3 Comments
Pseu · 24 March 2004
But scientists have observed other animals (including people!) having sex, and have seen that it results in babies. The parallel statement can't be made regarding organelles.
I think that what I infer to be your larger point may have merit, but your analogy doesn't work.
Reed A. Cartwright · 24 March 2004
But we're not talking about any animals. We're talking about my parents. Although some humans do occationally have sex, scientists have not observed any of these copulations producing me.
Paul Orwin · 24 March 2004
Congrats on the great blog. On topic, it seems that our esteemed Ohioans have not read PLoS Biology this month. Endosymbionts are everywhere!
Endosymbiont review
The story above accompanies the Wolbachia genome, also published in this great, highly esteemed, OPEN ACCESS biology journal (yay!).