CBSE Class 9 Answered
Give one example of each:i. Reptile with four-chambered heart ii. Flightless birdiii. Cartilaginous fish iv. Egg-laying mammal
Asked by Topperlearning User | 09 May, 2016, 07:24: AM
Expert Answer
i. Crocodile
ii. Ostrich
iii. Dogfish
iv. Duck-billed platypus
Answered by | 09 May, 2016, 09:24: AM
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