Basic Science : Kingdom Animalia Metazoa QUESTIONS AND ANSWERS :: part9 : 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.Which one of the following statements about all the four of Spongilla, Leach, Dolphin and Penguin is correct |
| Leach is fresh water while all others are marine |
| Spongilla has special collared cells choanocytes not found in the remaining three |
| All are bilaterally symmetrical |
| Penguin is homoiothermic while the remaining three are poikilothermic |
17.Amphiblastula is larva of |
| Leucosolenia |
| Sycon |
| Hydra |
| Planaria |
18.Sponge structure corresponding to mouth of other animals is |
| Incurrent canal |
| Ostium |
| Osculum |
| Excurrent canal |
19.In porifera, skeleton forming cells are |
| Sclerocytes |
| Archaeocytes |
| Thesocytes |
| Amoebocytes |
20.Sponges capture food by |
| Pinacocytes |
| Choanocytes |
| Thesocytes |
| Trophocytes |
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