"All vertebrates are chordates but all chordates are not vertebrates". Justify the statement.

Question

TextSalient Features and Classification of Phylum Chordata Up to Class Level

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How important is the presence of air bladder in Pisces?

What are the modifications that are observed in birds that help them fly?

Assertion: Reptiles are homoiothermous animals. Reason: They are not able to maintain a constant body temperature.