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    NEET 2026 Preparation Tips for Chemistry, Biology and Physics

    Characterstic Features of Urochordata MCQ - Practice Questions with Answers

    Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET

    Quick Facts

    • 14 Questions around this concept.

    Solve by difficulty

    Tunicates are called so because

    Excretion in urochordata occurs through

    Select the animal that exhibits retrogressive metamorphosis 

    Concepts Covered - 1

    Sub Phylum Urochordata - Characteristics Features
    • These animals are also called tunicates because of the presence of cellulose-like carbohydrate material called tunic that covers the outer body surface of these animals
    • They possess notochord only during the larval stage. The notochord at this stage is confined to the tail region only
    • The adult tunicates have only one feature of chordates, i.e., pharyngeal gill slits. The notochord, nerve cord and post-anal tail disappears in adults
    • They are hermaphroditic animals. The larvae hatch from the eggs inside the body of adult tunicate
    • They show retrogressive metamorphosis
    • Most of the Urochordates are sessile
    • They feed on plankton and detritus
    • Examples : Ascidia,Herdmania, Doliolum and Salpa
    • The following figure shows the comparative diagrams of larval and adult tunicate : 

    Study it with Videos

    Sub Phylum Urochordata - Characteristics Features

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