According to Wikipedia, "when exposed to a reduction in the partial pressure of oxygen, R. sphaeroides develops evaginations in its cellular membrane." I giggled when I read the word "evaginations". I giggled a little harder when I read that the "photosynthetic apparatus is housed in these evaginations."
I don't know what evagination is, but I assume it is a combination of vagina and imagination.
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This woman has a very active evagination.
Photo: notti cabirian via Flickr (CC)
just don't forget about the other important parts that help R. sphaeroides achieve organism
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