4
Question
Kidney of fish is of type ......................
Kidney of fish is of type ......................
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Solution
The correct option is B Opisthonephros
Cyclostomes are the organisms which belong to the group of chordates. These are the jawless fishes. The group also includes the lampreys and hagfishes. They have rounded mouths that lack jaws. The water keeps on cycling through the open mouth which cannot be closed due to lack of jaws. The opisthonephros is the kidney present in adults of these organisms. It is formed from the extended mesonephros along with the tubules from the posterior nephric ridge.
Thus, the correct answer is option B.
Cyclostomes are the organisms which belong to the group of chordates. These are the jawless fishes. The group also includes the lampreys and hagfishes. They have rounded mouths that lack jaws. The water keeps on cycling through the open mouth which cannot be closed due to lack of jaws.
The opisthonephros is the kidney present in adults of these organisms. It is formed from the extended mesonephros along with the tubules from the posterior nephric ridge.
Thus, the correct answer is option B.
Thus, the correct answer is option B.
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