The loop of Henle is absent in the nephrons of which of the following?
- AFrog
- BHuman
- CBird
- DMammal
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$A$: In Paramecium,the contractile vacuole performs excretion.
$R$: In Planaria,flame cells are present which perform excretion.
$R$: In Planaria,flame cells are present which perform excretion.
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View SolutionMatch the following columns:
Column-$I$ Column-$II$ $P$. Protonephridia / Flame cells $I$. Prawn $Q$. Nephridia $II$. Earthworm $R$. Malpighian tubules $III$. Cockroach $S$. Antennal gland / Green gland $IV$. Platyhelminthes,Rotifers,some Annelids and Amphioxus
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| $P$. Protonephridia / Flame cells | $I$. Prawn |
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| $R$. Malpighian tubules | $III$. Cockroach |
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