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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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Question Type: Memory
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Difficulty Level: Easy
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Topics: Plant and Animal Kingdom
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Subject: Biology
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Black foot disease is caused due to excess of
- What is the value of pH of ptyalin at which it acts on the saliva?
- In mammalian eye, the ‘fovea’ is the center of the visual field, where:
- The maintenance of internal favourable conditions by a self regulated mechanism
- Vinegar is prepared from alcohol with the help of
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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