Question : Which of the following does not fall under Non-Chordates?
Option 1: Annelida
Option 2: Porifera
Option 3: Vertebrata
Option 4: Mollusca
Correct Answer: Vertebrata
Solution : The correct answer is Vertebrata .
Animals without a notochord or backbone are known as non-chordates, whereas chordates possess both. Non-chordates do not have gill slits since they breathe through their trachea or body surface. In non-chordates, the post-anal tail is lacking, while the heart is either dorsally or laterally located if it is present. Any animal that belongs to the prominent subphylum of the phylum Chordata, Vertebrata, is referred to as a vertebrate. Their name comes from the fact that they have backbones.
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