Which of the following statements is not corr | vedclass

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(D) The correct answer is $D$. Setae are composed of chitin, which is a tough, nitrogen-containing polysaccharide. Chitin is highly resistant to chemi

Vedclass · Accepted Answer

Setae easily dissolve in $KOH$.

Vedclass · Answer

(D) The correct answer is $D$. Setae are composed of chitin, which is a tough, nitrogen-containing polysaccharide. Chitin is highly resistant to chemical degradation, including strong alkalis like $KOH$. Therefore, setae do not dissolve in $KOH$. Other statements regarding the speed of movement, oxygen tolerance, and life span are biologically accurate for the earthworm $(Pheretima \, posthuma)$.

Which of the following statements is not correct for an Earthworm?

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