Multiple choice

Identify the phylum whose characteristic feature is the presence of notochord?

  1. Mollusca

  2. Vertebrata

  3. Annelida

  4. Platyhelminthes

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Vertebrata (a subphylum of Chordata) is characterized by the presence of notochord during embryonic development. Mollusca, Annelida, and Platyhelminthes do not have notochord.