Crows and parrots are similar in size yet differ widely in:
AWing shape
BLife span
CFeather count
DEgg colour
Answer & Solution
Correct answer: B. Life span
1. The two birds are close in body size.
2. One outlives the other by many years.
3. So they differ widely in life span.
_Source: NCERT Class 12 Biology, Chapter 1, Reproduction in Organisms._
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