Geoff23 Posted February 24, 2007 Report Share Posted February 24, 2007 Would someone be kind enough to check the following paragraph for me, I need to complete it by adding the appropriate words from the following list, Cell walls, mitochondria, nucleus, DNA, eukaryotes, protoctists, endosymbiosis, organelle, membranes, diversity, bacteria, chloroplasts, cytosol. The bold words are the ones I believe to be correct, but would like a second opinion. Lynn Margulis first proposed that chloroplasts evolved by a process of endosymbiosis in which bacteria developed into eukaryotes and protocists and eventually lost their independence. Evidence for this is that both types of organelle have nucleus, they also have similar ribsomes and are bounded by membranes. Also the respiration and photosynthetic abilities of mitochondria and chloroplasts already existed in certain free – living bacteria. Quote Link to comment Share on other sites More sharing options...
CraigD Posted February 24, 2007 Report Share Posted February 24, 2007 Looks OK to me. :shrug: Margulis ideas about the origin of complex multicellular life are very interesting – I hope you’ve read beyond what’s needed for this science vocabulary exercise. This short essay by her is one of my favorite. I speculated a bit on it in this hypography post. Quote Link to comment Share on other sites More sharing options...
Geoff23 Posted February 25, 2007 Author Report Share Posted February 25, 2007 Brilliant, thanks. Quote Link to comment Share on other sites More sharing options...
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