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Which one of the following groups of animals reproduces only by sexual means?
Options
(a) Ctenophora
(b) Cnidaria
(c) Porifera
(d) Protozoa
Correct Answer:
Ctenophora
Explanation:
In Ctenophora, sexes are not separate. Reproduction takes place only by sexual means. In Cnidaria, which exist in both forms, polyps produce medusae asexually and medusae form the polyps sexually. Porifera (sponge) reproduce asexually by fragmentation and sexually by formation of gametes. Protozoans come under protista which reproduce asexually and sexually by cell fusion and zygote formation.
Related Questions: - Which one of the following statements is true about archaea?
- Retina is most sensitive at
- Endosperm is consumed by developing embryo in the seed of
- The cohesive force existing between molecules of water is contributing to
- Which of the following is not correct Sponges
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Plant and Animal Kingdom
(295)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following statements is true about archaea?
- Retina is most sensitive at
- Endosperm is consumed by developing embryo in the seed of
- The cohesive force existing between molecules of water is contributing to
- Which of the following is not correct Sponges
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Plant and Animal Kingdom (295)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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