[Campbell Biology P.742] Which statement accurately describes the reproductive strategy and ... | Practice Question

Which statement accurately describes the reproductive strategy and alternation of generations in Obelia, based on Figure 33.7 and the accompanying text?

  • A: The polyp stage reproduces sexually, and the medusa stage reproduces asexually.
  • B: Both polyp and medusa stages reproduce sexually.
  • C: The polyp stage reproduces asexually by budding, producing medusae, which then reproduce sexually by releasing gametes.
  • D: Obelia only reproduces asexually through budding in the polyp stage.

Explanation

Figure 33.7 and its description clearly state that 'The polyp is asexual, and the medusa is sexual, releasing eggs and sperm. These two stages alternate, one producing the other.' This describes the alternation of asexual reproduction by budding in the polyp stage, leading to sexual reproduction by medusae.