Metagenesis is found in: Hydra

Metagenesis is a fascinating reproductive process observed in certain organisms, particularly in the animal kingdom. It involves alternating generations, typically between asexual and sexual forms.

Organisms Exhibiting Metagenesis

Among the examples you provided, metagenesis is notably found in:

• Hydra: This freshwater organism reproduces asexually through budding and can also engage in sexual reproduction under certain conditions.
• Obelia: A colonial organism that exhibits both asexual polyp and sexual medusa stages, showcasing clear metagenesis.
• Aurelia: Commonly known as the moon jellyfish, it has a life cycle that alternates between a polyp stage and a medusa stage, exemplifying metagenesis.

However, Tubipora, also known as the organ-pipe coral, does not typically exhibit metagenesis in the same way as the others mentioned.

Summary of Metagenesis

In summary, Hydra, Obelia, and Aurelia are excellent examples of organisms that undergo metagenesis, while Tubipora does not follow this reproductive pattern. Understanding these life cycles helps in studying biodiversity and ecological interactions.