Tamilnadu BoardEnglish MediumSTD 12Bio ZoologyEvolution.2 Marks
Question
Human appendix is a vestige. Give reason.
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Answer
Human appendix is the remnant of caecum which is functional in the digestive tract of herbivorous animals like rabbit. Cellulose digestion takes place in the caecum of these animals. Due to change in the diet containing less cellulose, caecum in human became functionless and is reduced to a vermiform appendix, which is vestigial.
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