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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: - At retrogressive metamorphosis, the urochordate larva
- Which one of following pairs of gases are the major cause of Greenhouse effect
- Which of the following cross will give tall and dwarf pea plants in same
- A plant in your garden avoids photorespiratory losses has improved water use
- Unloading of minerals occur at
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
- At retrogressive metamorphosis, the urochordate larva
- Which one of following pairs of gases are the major cause of Greenhouse effect
- Which of the following cross will give tall and dwarf pea plants in same
- A plant in your garden avoids photorespiratory losses has improved water use
- Unloading of minerals occur at
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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