Basic Science : Kingdom Animalia Metazoa QUESTIONS AND ANSWERS :: part9 : 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.Sycon belongs to a group of animals which are best described as |
| Unicellular or acellular |
| Multicellular without any tissue organisation |
| Multicellular with a gastrovascular system |
| Multicellular having tissue organization, but no body cavity |
22.The one absent in sponges is |
| Nerve cell |
| Gland cell |
| Sensory cell |
| All the above |
23.One of the following is not the characteristic feature of sponges |
| Cellular level of organisation |
| Body supported by chitin |
| Presence of ostia |
| Intracellular digestion |
24.Which is not correct about sponges? |
| Internal fertilization |
| Gemmule formation |
| External fertilization |
| Gametes are formed from epidermal cells |
25.Sponges are porifers because their bodies have |
| Spicules in skeleton |
| Several pores |
| Canal system |
| All the above |
More Kingdom Animalia Metazoa QUESTIONS AND ANSWERS available in next pages
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