A) Obelia
B) Physalia
C) Porpita
D) Velella
Correct Answer: B
Solution :
Physalia colony is a tetramorphic colony because it is consist of four types of zooids. The zooids include (i) Gastrozooids for feeding (ii) Dactylo zooids for defence (iii) Gonodendra for bearing male and female gonophores (iv) Gonopalpons for the protection of gonophores.You need to login to perform this action.
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