Q. No.Darwin's finches are a good example of:
1. industrial melanism
2. connecting link
3. adaptive radiation
4. convergent evolution
In the case of peppered moth (Biston betularia), the black-coloured form became dominant over the light-coloured form in England during the industrial revolution. This is an example of:
| 1. | natural selection, whereby the darker forms were selected |
| 2. | appearance of the darker coloured individuals due to very poor sunlight |
| 3. | protective mimicry |
| 4. | inheritance of darker colour character acquired due to the darker environment |
| 1. | adaptive radiation |
| 2. | seasonal migration |
| 3. | brood parasitism |
| 4. | connecting links |
| 1. | analogous organs | 2. | homologous organs |
| 3. | vestigial organs | 4. | retrogressive evolution |
Among the human ancestors the brain size was more than 1000 CC in:
1. Homo neaderthalensis
2. Homo erectus
3. Ramapithecus
4. Homo habilis
The concept of chemical evolution is based on:
| 1. | crystallization of chemicals |
| 2. | interaction of water, air, and clay under intense heat |
| 3. | effect of solar radiation on chemicals |
| 4. | possible origin of life by a combination of chemicals under suitable environmental conditions |
Industrial melanism as observed in peppered moths proves that:
| 1. | The true black melanic forms arise from a recurring natural selection |
| 2. | The melanic form of the moth has no selective advantage over the lighter form in an industrial area |
| 3. | The lighter-form moth has no selective advantage either in polluted industrial areas or non-polluted areas |
| 4. | Melanism is a pollution-generated feature |
| 1. | Thorn of Bougainvillea and tendrils of Cucurbita – Analogous organs |
| 2. | Nictitating membrane and blind spot in the human eye – vestigial organs |
| 3. | Nephridia of the earthworm and Malpighian tubules of cockroach - Excretory organs |
| 4. | Wings of a honey bee and wings of crow - Homologous organs |
Select the correct statement from the following:
| 1. | Darwin variations are small and directionless |
| 2. | fitness is the end result of the ability to adapt and gets selected by nature |
| 3. | all mammals except whales and have seven cervical vertebrae |
| 4. | Mutations are random and directional |
The finches of the Galapagos islands provide evidence in favour of:
1. special creation
2. evolution due to mutation
3. retrogressive evolution
4. biogeographical evolution
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