Which one of the following is NOT a characteristic of phylum Annelida?
Ventral nerve cord
Closed circulatory system
Segmentation
Pseudocoelom
Additional Questions
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Polymorphism occurs in animals of the class |
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The clam nervous system is composed of |
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______ are devoid of respiratory, excretory and circulatory organs. |
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Phylum that doesn t have a true coelom is |
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Who wrote the book ‘Systema Naturae’? |
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Which one of the following animals shows discontinuous distribution? |
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The radially symmetrical cnidarians have a ______ body in two distinct layers |
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The cells absent in gastrodermis of Hydra are |
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Echolocation is usually associated with |
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Cell tissue grade of organization occurs in |
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