Choose the correct option concerning earthworm.

Dorsal notochord and ventral nerve cord

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Ventral notochord and no nerve cord

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No notochord and ventral nerve cord

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No notochord and dorsal nerve cord

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Solution

The correct option is C No notochord and ventral nerve cord
Notochord is a supporting structure, part of internal skeleton found only in chordates.
Earthworm belongs to the phylum annelida which include non-chordates. So earthworm does not have notochord. They have a ventral nerve cord.

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Similar questions

Animals with a double ventral notochord, dorsal nerve cord, pharyngeal gill slits and a post anal tail are placed in the highly evolved phylum called_____.

Differentiate between nerve cord and notochord.??

Name the phylum in which dorsal nerve tube, notochord and pharyngeal gill clefts are present.

Q. Phylum Chordata is characterised by the presence of
A. notochord
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Give one point of difference between notochord and nerve cord.

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Choose the correct option concerning earthworm.

The correct option is C No notochord and ventral nerve cordNotochord is a supporting structure, part of internal skeleton found only in chordates. Earthworm belongs to the phylum annelida which include non-chordates. So earthworm does not have notochord. They have a ventral nerve cord.

The correct option is C No notochord and ventral nerve cord
Notochord is a supporting structure, part of internal skeleton found only in chordates.
Earthworm belongs to the phylum annelida which include non-chordates. So earthworm does not have notochord. They have a ventral nerve cord.