Basic Science : Phylum Arthropoda QUESTIONS AND ANSWERS :: part12 : 21 to 25
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
21.Madreporite is associated with |
| Water vascular system |
| Canal system |
| Blood vascular system |
| Digestive system |
22.Which one is mismatched pair |
| Apis indica …………Honey |
| Kerria laucca ……….. Lac |
| Bombax mori ……….. Silk |
| Pila globosa ………… Pearl |
23.In echinoderms and mollusks the skeleton is |
| Chitinous |
| Siliceous |
| Calcareous |
| Nacreous |
24.Microscopic stalked pincer-like structures present in echinoderms are |
| Tube feet |
| Spines |
| Pedicellariae |
| Ossicles |
25.Which of the following is fixed |
| Antedon |
| Asterias |
| Echinus |
| Cucumaria |
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