1. | Homo erectus | 2. | Neanderthal man |
3. | Homo habilis | 4. | Australopithecus |
1. | Flippers of penguins and dolphins are a pair of homologous organs. |
2. | Analogous structures are a result of convergent evolution. |
3. | Sweet potato and potato is an example of analogy. |
4. | Homology indicates common ancestry. |
Genetic Drift occurs due to :
1. Natural selection
2. Sudden population migration
3. Continuous gene migration
4. Mutation
Select the correct match regarding adaptive radiation of Australian marsupials corresponding to placental mammals
1. Numbat-Flying Squirrel
2. Tasmanian Wolf - Bobcat
3. Marsupial mouse- Mole
4. Spotted Cuscus - Lemur
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. |
The factor that leads to Founder effect in a population is:
1. | Mutation | 2. | Genetic drift |
3. | Natural selection | 4. | Genetic recombination |
Match List-I with List-II:
List-I | List-II |
(a) Adaptive radiation | (i) Selection of resistant varieties due to excessive use of herbicides and pesticides |
(b) Convergent evolution | (ii) Bones of forelimbs in Man and Whale |
(c) Divergent evolution | (iii) Wings of Butterfly and Bird |
(d) Evolution by anthropogenic action | (iv) Darwin Finches |
Choose the correct answer from the options given below:
(a) | (b) | (c) | (d) | |
1. | (ii) | (i) | (iv) | (iii) |
2. | (i) | (iv) | (iii) | (ii) |
3. | (iv) | (iii) | (ii) | (i) |
4. | (iii) | (ii) | (i) | (iv) |