Basic Science : Coelenterata Ctenophora QUESTIONS AND ANSWERS :: part3 : 16 to 20
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
16.Zoochlorellae or zooxanthellae of coloured Hydra occur in |
| Epithelio-muscular cells |
| Nutritive cells |
| Mesogloea |
| Interstitial cells |
17.Gastrovascular cavity or coelenteron is partitioned in |
| Hydrozoa |
| Scyphozoa |
| Actinozoa |
| Both B and C |
18.Obelia is |
| Sedentary |
| Attached but capable of locomotion |
| Motile |
| Free floating |
19.Tentacles of Obelia are |
| Hollow |
| Solid |
| Internally chambered |
| Spiny and hollow |
20.In Physalia, the float is |
| Crimson |
| Brown |
| Blue |
| Colourless |
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