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30/08/2020 7:23 pm
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Which one of the following statements is not correct?
(a) All echinoderms are viviparous.
(b) Roundworm has no circulatory system.
(c) In bony fishes, swim bladder is usually present.
(d) In cartilaginous fishes, fertilization is internal.
1 Answer
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30/08/2020 7:35 pm
(a) All echinoderms are viviparous.
Explanation:
The animals of phylum echinodermata are oviparous. They have the ability of regeneration.