Which of the following features connot be associated with Rana tigrina?

Tympanum represents the ear

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Three chambered heart

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Body divisible into head and trunk

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Direct developement

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Solution

The correct option is C Direct developement
Tympanum is a membrane of the eardrum. It has a three chambered heart made of muscle tissues. The body of the frog is divisible into head and trunk. The head is in a triangular shape. The lungs is present in the trunk of the body.
Frog is not assiciated with direct development. It develops from a tadpole.

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