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NTA Abhyas NEET2020BotanyAnimal KingdomPractice

Which of the following statements is incorrect regarding organisms of phylum Chordata?

Options

  1. AThe organisms are characterized by the presence of a notochord and a ventral hollow nerve cord.
  2. BThey are triploblastic and bilaterally symmetrical.
  3. CThey have a ventral heart.
  4. DThey are further divided into three subphyla.

Correct answer

A. The organisms are characterized by the presence of a notochord and a ventral hollow nerve cord.

Step-by-step solution

The organisms of Phylum Chordata are not characterized by notochord only. They are characterized by the presence of: 1. A notochord 2. A dorsal hollow nerve cord 3. Paired pharyngeal gill slits

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