AIIMS 2018 May 26 Biology Evening Question Paper with solutions for online practice
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Question : 5 of 47
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Which of the following option is correct?
| (1) | Osteichthyes | 4 pairs of gill slits covered by operculum |
| (2) | Chondrichthyes | 6-15 pairs of gill slits |
| (3) | Arthropoda | Metamerism and excretion by nephridia |
| (4) | Platyhelminthes | Bilateral symmetry & coelomate e.g., Taenia and Fasciola |
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