Question

Three basic feature of chordata

Answer 1

Answer:

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.

Pharyngeal slits are openings in the pharynx that develop into gill arches in bony fish and into the jaw and inner ear in terrestrial animals.

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Answer 2

Answer: The phulum chordata shares 4 key features that are:-

Notochordata- A flexible rod like structure that forms the main support of the body in lower chordates , a primitive spine.

Nerve cord- A dorsal tubular cord of nervous tissue above the notochord of a chordat.

Pharyngeal silt- Filter feeding organ found in invertebrate chordates (lancelets and tunicates) and hemichordates living in aquatic environments.

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Explanation: