Classify phylum vertebrata into their further groups by giving two characteristics of each.
Q. Classify phylum vertebrata into their further groups by giving two characteristics of each.
Ans.
(i) Pisces: Exoskeleton of scales, endoskeleton of bone cartilage, breathing through gills.
(ii) Amphibia: Gills in larval stage, lungs in most adults, slimy skin.
(iii) Reptilia : Exoskeleton of scales, laying eggs outside water.
(iv) Aves: Exoskeleton of feathers, fore limbs are modified as wings.
(v) Mammalia: Exoskeleton of hair, external ears, mostly giving birth to young ones.
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