Poly $\to$ Asexually $\to$ Medusa $\to$ Sexually $\to$ Polyp

The above cycle is shown by

Select from the following total number of organisms that contains the word 'Sea' in their common names.

Physalia, Adamsia, Pennatula, Gorgonia, Meandrina, Hydra, Aurelia, Obelia.

Match the following columns.

(1) Fertilization_____

(2) Development_____

(3) Excretion and osmoregulation by_____

Fill in the blanks for the organism given in figure.