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Question

Frogs

Have olfactory lobes in the midbrain
Are uricotelic
Have lymphatic system
Do not have renal portal system

A

Do not have renal portal system

B

Have olfactory lobes in the midbrain

C

Have lymphatic system

D

Are uricotelic

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Solution

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Frogs excrete urea and thus are ureotelic animals.
Olfactory lobes are present in the fore brain while the midbrain is characterised by a pair of optic lobes.
Special venous connection between liver and lower parts of the body is present in frogs. It is called renal portal system.
The lymphatic system of a frog consists of lymph, lymph vessels, lymph heart, lymph spaces and spleen. Some mast cells can also be found in the lymphatics of the tongue of some of the frog species.
So, the correct option is 'Have lymphatic system'.

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