From: Loki100l00@aol.com
Date: Sun Feb 24 2002 - 15:35:16 MST
[Dr. Sebby]...um first of all...if you keep tracing life back far enough, your
ancestors ARE plants!
[Jake] Sorry to nitpick at you lately, but we gotta get these evolutionary facts straight especially here in
the CoV. Plants do not lie in human ancestry. Plants and humans do share a common ancestor,
probably a flagellated or cilliated eukaryotic single celled organism, that may or may not have had
chloroplasts.
[Jake2] After looking through my biology texts for a more acurate answer, I would have to say that it probably did have chloroplasts. The closest related extant organism seems to be euglena, a single celled flagellated organism that does have chloroplasts. In any case whatever it was is a far cry from either plants or animals as we know them. If the experience of pain is the major relevance in this debate, it is unlikely that euglena experience anything like this. Pain as we know it probably arose in animals and not in plants, because animals, as motile organisms could more likely actually do something about the source of pain - like actively avoiding it.
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