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Animal Kingdom

Question

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Which of the following animals has a tetramorphic colony?

Velella

Physalia

Obelia

Porpita

Solution

B.

Physalia

Physalia is tetramorphic in nature, it consists of

(i) a small dactylozooid with a long slender tantacle.

(ii) a gastrozooid with mouth but no tentacle.

(iii) a branched gonozooid, which bears both male and female gonophores.

(iv) a large dactylozooid with an enormous nematocyst bearing fishing tentacle.

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