List I | List II |
A. Devonian period | I. First vertebrate and marine algae abundant |
B. Pliocene period | II. Gymnosperms continue as dominant plants & first birds |
C. Ordovician period | III. Diversification of bony fishes & first amphibian dominant |
D. Jurassic period | IV. Ape like ancestors of human appear |
Statement I: | In England, during the Industrial Revolution, the black-colored form of Biston Betularia became dominant over the light-colored form of moth because of natural selection, the darker forms were selected. |
Statement II: | Prior to the Industrial Revolution, the peppered moths exhibited protective mimicry and the light-colored moths were not noticed by predatory birds due to light-colored lichens on the bark of trees. |
Statement I: | Mutations are random and direction less, while Darwinian variations are small and directional. |
Statement II: | Darwin's finches represent one of the best examples of adaptive radiation. |
List I | List II |
A. Homologous | I. Convergent evolution |
B. Paralogous | II. Speciation |
C. Analogous | III. Gene duplication |
D. Orthologous | IV. Divergent evolution |
1. | Creation of life from dead and decaying matter |
2. | Creation of life from chemicals |
3. | Origin of sperm in human testes |
4. | Transfer of spores as a unit of life from other planets of Earth |
1. | This theory was proposed by Alfred Wallace. |
2. | Variations are small directional changes. |
3. | Single-step large mutation is a cause of speciation. |
4. | Large differences due to mutations arise gradually in a population. |