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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.
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- Ribosomes are the centre for
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- In which of the following preparations are you likely to come across cell
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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
- Channel proteins are involved in
- Ribosomes are the centre for
- Cladodes are found in
- In which of the following preparations are you likely to come across cell
- Human chromosome number was determined correctly by
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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