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Classification of Chordata Video Lecture - NEET

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1. What are the main characteristics of Chordata?

Ans. Chordata is a phylum of animals that possess a notochord, dorsal hollow nerve cord, pharyngeal slits, and post-anal tail. These characteristics are present at some stage of their life cycle and define their classification as chordates.

2. How many classes are there in the classification of Chordata?

Ans. There are five main classes in the classification of Chordata. They are: Agnatha (jawless fish), Chondrichthyes (cartilaginous fish), Osteichthyes (bony fish), Amphibia (amphibians), and Mammalia (mammals).

3. What are some examples of Chordata species?

Ans. Some examples of Chordata species include humans (Homo sapiens) belonging to the class Mammalia, sharks (Chondrichthyes), frogs (Amphibia), and lampreys (Agnatha).

4. How are Chordata classified based on their feeding habits?

Ans. Chordata can be classified into three main groups based on their feeding habits. They are herbivores (feed on plants), carnivores (feed on other animals), and omnivores (feed on both plants and animals).

5. What is the significance of the notochord in Chordata?

Ans. The notochord is a flexible rod-like structure present in the embryonic stage of Chordata. It provides support and structure to the body, allowing for efficient locomotion. In some species, the notochord may be replaced by a vertebral column during the development process.

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Sep 19, 2025 Last updated

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