The distinguishing characteristic of all birds is that of _____.

wings
feathers
flying
laying eggs
two legs

3 answers

feathers
Select 2 that apply.

What characteristics are common to all members of the mammals?
mammary glands
lay eggs
can make its own food
take care of their young for a long time
hair at some point during their lives
mammary glands
take care of their young for a long time