1. Peripatus
2. Echidna
3. Proterospongia
4. All of these
All of these
1. Sphenodon
2. Limulus
3. Peripatus
4. All of these
All of these
1. Palaeozoic
2. Mesozoic
3. Coenozoic
4. Proterozoic
Mesozoic
1. Blood grouping
2. Antigen-antibody reaction
3. Animal relations
4. Immunity
Blood grouping
1. Wallace
2. Nuttal
3. Bateson
4. Needham
Wallace
1. Uranium-lead
2. Potassium-argon
3. Rubidium-strontium
4. All of these
All of these
1. Vestigal structures
2. Homologous structures
3. Analogous structures
4. None of the above
None of the above
1. Phylogenetic
2. Sexual
3. Serial
4. None of these
None of these
1. Sir richard owen
2. Charles darwin
3. Lamarck
4. Hulton
Sir richard owen
1. The organs of same individual occupying different levels of the body
2. The organs of different organisms with same function
3. The appendages of various parts of prawn body
4. Both (a) and (c)
The organs of different organisms with same function