Identify an organism that exhibits metagenesis.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. Obelia.
- Obelia is a genus of small, colonial marine hydroids belonging to the class Hydrozoa within the phylum Cnidaria.
- Obelia is well-known for exhibiting metagenesis, also known as alternation of generations, which is a type of life cycle that alternates between asexual and sexual reproduction.
- Metagenesis refers to the alternation between two distinct generations.
- The asexual polyp stage and the sexual medusa stage.
- This alternation allows Obelia to exploit different ecological niches and enhance its chances of survival and reproduction.