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What is Echinoderm-Chordate Affinities Explained about?
The document discusses the affinities between echinoderms and chordates, noting that while some researchers view echinoderms as closely related to chordates, modern perspectives suggest they diverged from a common ancestor. It highlights the presence of mesodermal skeletal substance in both groups and references biochemical evidence presented by Needham in 1932, indicating similarities in phosphogen types. The document emphasizes the unique presence of both arginine and creatine phosphate in echinoids and h
- Author
- Tarun kumar sinha is wah sinha
- Language
- EN