Question
Download Solution PDFIdentify an organism that exhibits metagenesis.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Obelia.Key Points
- Metagenesis refers to a type of alternation of generations where the life cycle of an organism involves both sexual and asexual reproduction.
- In this process, the offspring of the sexual phase undergo a phase of asexual reproduction before they mature into the sexual phase.
- Obelia is a genus of colonial hydrozoans that exhibit metagenesis.
- They have a complex life cycle that involves both polyp and medusa stages, and the polyps undergo asexual reproduction to produce medusae.
Additional Information
- Spongilla is a genus of freshwater sponges that do not exhibit metagenesis.
- They reproduce sexually by releasing sperm and eggs into the water, which then develop into larvae that settle and grow into adult sponges.
- Sycon is a genus of calcareous sponges that do not exhibit metagenesis.
- They reproduce sexually by releasing sperm and eggs into the water, which then develop into free-swimming larvae that settle and grow into adult sponges.
- Euspongia is a genus of marine sponges that do not exhibit metagenesis.
- They reproduce sexually by releasing sperm and eggs into the water, which then develop into free-swimming larvae that settle and grow into adult sponges.
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