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CBSE Notes 2011-2012

Which of the following statements is not correct ?

Multiple choice question

Which of the following statements is not correct ?

unknown

Deoxygenated blood is poured into right atrium of heart.

unknown

The excretory units of flatworms are flame cells.

unknown

Human kidney has about 1 million nephridia

unknown

Tracheids and vessels are non-living conducting tissues.