Question

Some salient features and phyla of organisms are given below. Select the option which shows correct combination of organism, its phylum and salient features.

• A. Hydra $\to$ Coelenterata $\to$ Bilateral symmetry $\to$ Cnidoblasts present
• B. Planaria $\to$ Platyhelminthes $\to$ Bilateral symmetry $\to$ High regeneration capacity
• C. Ancylostoma $\to$ Annelida $\to$ Bilateral symmetry $\to$ Elongated and worm shape
• D. Octopus $\to$ Mollusca $\to$ Radial symmetry $\to$ External skeleton of shell present

Answer 1

Answer: (B)

Planaria $\to$ Platyhelminthes $\to$ Bilateral symmetry $\to$ High regeneration capacity

Answer 2

Hydra shows radial symmetry, Ancylostoma is an aschelminth. Octopus shows bilateral symmetry and also lacks an external skeleton of shell.