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
1. | Sympatric |
2. | Undergoing disruptive selection |
3. | Allopatric |
4. | Not geographically separated |
Assertion(A): | Analogous structures are a result of convergent evolution |
Reason(R): | More than one adaptive radiation appeared to have occurred in an isolated geographical area, is the convergent evolution |
1. | Both (A) & (R) are true and (R) is the correct explanation of (A) |
2. | Both (A) & (R) are true but (R) is not the correct explanation of (A) |
3. | (A) is true but (R) is false |
4. | Both (A) and (R) are false statements |