𝔖 Bobbio Scriptorium
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Did the last common ancestor have a biological membrane?

✍ Scribed by Gáspár Jékely


Book ID
119909480
Publisher
BioMed Central
Year
2006
Tongue
English
Weight
391 KB
Volume
1
Category
Article
ISSN
1745-6150

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## Abstract The modal number of lumbar vertebrae in modern humans is five. It varies between three and four in extant African apes (mean=3.5). Because both chimpanzees (__Pan troglodytes__) and gorillas (__Gorilla gorilla__) possess the same distributions of thoracic, lumbar, and sacral vertebrae,