| 1. | A highly oxidizing atmosphere |
| 2. | High temperature |
| 3. | Volcanic storms |
| 4. | Presence of methane and ammonia in the atmosphere |
| 1. | 0.9 | 2. | 0.7 |
| 3. | 0.42 | 4. | 0.49 |
| I. | Homo habilis | Brain capacity 650-800 cc; probably did not eat meat |
| II. | Homo erectus | Brain capacity about 900 cc; probably ate meat |
| III. | Neanderthal man | Brain capacity 1400 cc; buried their dead |
| 1. | Only I and II |
| 2. | Only I and III |
| 3. | Only II and III |
| 4. | I, II, and III |
| 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
| Name | Age | Character | |
| 1. | Dryopithecus | 15 mya | They were hairy and walked like gorillas and chimpanzees |
| 2. | Australopithecus | 2 mya | They hunted with stone weapons but essentially ate fruit. |
| 3. | Homo erectus | 1.5 mya | Large brain around 900 cc, probably ate meat. |
| 4. | Neanderthal man | 100000-40,000 years back | brain size of 1400 cc lived in east African grassland. |
| 1. | Flippers of penguins and Dolphins | Analogous Organ |
| 2. | Koala and Bandicoot | Adaptive Radiation |
| 3. | Lemur and spotted cuscus | Convergent Evolution |
| 4. | Sweet potato and ptato | Divergent Evolution |