CBSE Class 11-science - Arthropoda, Mollusca, Echinodermata, Hemichordata Videos

• what is biology?
• what is the difference between centipide and milipede  
• Name the largest phylum of kingdom Animalia.
• What is radula? State its function.
• State different respiratory organs of animals of phylum Arthropoda.
• Name the parts of which the body of Balanoglossus is composed of.
• Name the excretory organ of Balanoglossus.
• Write any two examples of phylum Hemichordata.
• Given below are the pairs of animals and phylum which they belong to. Which out of these is not a matching pair and why?     Bombyx - Arthropoda     Loligo - Mollusca     Asterias - Mollusca     Saccoglossus - Hemichordata  
• State similarities between phyla Arthropoda and Mollusca.

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