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Which of the following structure of hemichordates was previously confused with notochord?
Option: 1 Stomochord
Option: 2 Proboscis
Option: 3 Collar
Option: 4 None of these
Stomochord
Proboscis
Collar
None of these
Answers (1)
Phylum Hemichordata - Characteristics Features -
- These are marine worm-like animals.
- They bear a resemblance to the chordates in having pharyngeal gill slits.
- They also bear a resemblance to the phylum Echinodermata.
- The proboscis has a buccal diverticulum or stomochord. It was earlier considered as notochord.
The proboscis has a buccal diverticulum or stomochord. It was earlier considered as notochord.
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