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const2013 [10]
3 years ago
6

What are the characteristics of phylum

Biology
1 answer:
Rama09 [41]3 years ago
7 0
These characteristics are only present during embryonic development in some chordates. The notochord provides skeletal support, gives the phylum its name, and develops into the vertebral column in vertebrates. The dorsal hollow nerve cord develops into the central nervous system: the brain and spine.
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