Question

an organ like wing in birds are an advantage to them. did they appear in diff stages or were formed due to a single sudden change
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Answer 1

Answer:

Well, it is not a sudden change . Because the feature given to birds enabling them to fly have been a feature that has been adapted by them from flying organisms at first they were adopted to keep them warm but later as time evolved so did they and so they started to fly using the very wings they adopted

Answer 2

Answer:

hey mate ❤

Explanation:

here is your answer