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Tunicates are called so because
Option: 1
They have a covering of cellulosic tunic

Option: 2
They have a covering of proteinaceous tunic

Option: 3
They have a covering of fatty tunic

Option: 4
None of these

Answers (1)

best_answer

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.
Most of the Urochordates are sessile.
They feed on plankton and detritus.
The following figure shows the comparative diagrams of larval and adult tunicate:

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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.

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