Question

13 1. Assertion: Obelia is dimorphic in nature. C С Reason: Polyp and gonangia form are exhibited by Obelia.​

Answer 1

Answer:

I don't know this answer

Answer 2

Obelia is dimorphic

Explanation:

• Obelia is dimorphic with separate sexual and asexual bodies.
• The obelia colony has two zooids namely blastostyle and gastrozooids.
• Blastostyle by asexual budding produces medusa.
• It cannot be treated as a separate morphological form, it is a transient phase in the life cycle.
• Obelia is a monomorphic form having polyp only but later due to the development of blastostyle it becomes a dimorphic colony and finally medusae bud over the blastostyle in a mature colony , then it becomes a trimorphic colony