CBSE Class 9 Answered
Write three
differences between animals belonging to Aves group and those in Mammalia group.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
|
Aves |
Mammals |
|
i. Body is covered externally with feathers. ii. They lay eggs. iii. No mammary glands are present.
|
i. Hair covers the body.
ii. They give birth to live young ones. iii. They have mammary glands with the help of which they feed their young ones. |
Answered by | 04 Jun, 2014, 03:23: PM
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