Basic Science : Coelenterata Ctenophora QUESTIONS AND ANSWERS :: part3 : 26 to 30
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
26.Growth zone of Hydra is |
| Diffused |
| Near the foot |
| Below hypostome |
| In the middle |
27.Number of tentacles in a polyp of Obelia is |
| 5 -10 |
| 10 - 15 |
| 15 - 20 |
| 20 - 30 |
28.Contractile structure of nematoblast is |
| Lasso |
| Cnidocil |
| Tube |
| Refractive rods |
29.Coelenterate without medusoid stage in life cycle is |
| Obelia |
| Aurelia |
| Physalia |
| Metridium |
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