Question

Peripatus is a connecting link between

• A. mollusca and echinodermata
• B. annelida and arthropoda
• C. coelenterata and porifera
• D. ctenophora and platyhelminthes

Answer 1

Answer: (B)

annelida and arthropoda

Answer 2

Peripatus is a connecting link betweenannelida and arthropoda.

Peripatus belongs to the phylum Onychophora. It can be defined as a primitive arthropod, like other arthropods, having jointed paired legs, compound eyes, and tracheas but also shows certain annelidan characteristics, like worm-like segmented body, non-chitinous cuticle and segmental nephridia.

Some of the Annelidan characteristics of Peripatus are:

1. Presence of simple eyes.

2. Presence of thick cuticle.

3. Body is pseudosegmented and worm-like.

4. An excretory organ is nephridia.

Some Arthropod characteristics of Peripatus are:

1. Presence of antennae.

2. The trachea forms the respiratory organ.

3. Presence of clawed and pseudosegmented walking legs.

Therefore, the correct answer is option B.