Question

please mention any 10 important lines of the chapter animal kingdom of class xi - biology

Answer 1

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1 ))➡️ all poriferans are marine except spongilla which is a freshwater sponge. Olynthus is a solitary sponge but all sponges live in colonies.

2 ))➡️ in the Phylum echinodermata water vascular system is found which is not found in any other phylum

3 ))➡️ autonomy means the shedding of body parts at the time of Defence

4 ))➡️ in urochordata notochord is present only in tail of Lava and is lost during metamorphosis, so adult is tailless so these are called Euro chordates.

5 ))➡️ In the phylum aschelminthes, pseudocoelom is found.

6 ))➡️ phylum Arthropoda is the largest phylum.

7 ))➡️ Insecta class of the phylum Arthropoda is largest class.

8 ))➡️ in the phylum Mollusca, Radula is a rasping and masticatory structure found, in buccal mass of gut.

9 ))➡️ All echinoderms are marine animals.

10 ))➡️ phylum echinodermata shows retrogressive development in which larva is more developed than adults.

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I hope it will help you a lot

Thanks

@drsm