TS EAMCET Medical 11 May 2023 Shift 2 Paper

Study the following and pick up the correct statements
I. Cyanognathus is a transitional form between reptiles and mammals
II. Prototherians are connecting links between birds and mammals
III. Wing of bird and wing of butterfly are homologous organs
IV. Biogenetic law states that ontogeny repeats phylogeny