Biology · STRUCTURAL ORGANISATION IN ANIMALS

Given below are two statements: Statement I: The heart of frog is four-chambered, consisting of two atria and two ventricles. Statement II: In frog, the triangular sinus venosus joins directly into the conus arteriosus on the ventral surface. In the light of the above statements, choose the most appropriate answer from the options given below:

1. Both Statement I and Statement II are correct.
2. Both Statement I and Statement II are incorrect.
3. Statement I is correct but Statement II is incorrect.
4. Statement I is incorrect but Statement II is correct.