Statement I: | The hearts in different vertebrates are homologous organs. |
Statement II: | They have developed in different groups as a result of convergent evolution between them. |
1. | Both Statement I and Statement II are correct and Statement II explains Statement I. |
2. | Statement I is correct and Statement II is incorrect. |
3. | Statement I is incorrect and Statement II is correct. |
4. | Both Statement I and Statement II are correct but Statement II does not explain Statement I. |
Statement I: | ‘A’ denotes ‘crocodilians’ that have a four chambered heart and endothermy similar to the birds and the mammals. |
Statement II: | ‘B’ denotes ‘Archaeopteryx’, a connecting link between reptiles and birds and has been found as a complete specimen preserved as fossil. |
Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 359139
Sorry!! currently, the explanation for the question is not provided. If you need further help, please email at support@neetprep.com with subject: Explanation Missing for Question Id: 359139
The “Biogenetic Law” was given by :
1. | von Baer | 2. | Ernst Haeckel |
3. | Hugo de Vries | 4. | Theodosius Dobzhansky |
“Organisms that share common descent show underlying embryological patterns on which they build later their adult patterns”. This is :
1. | Haeckel’s law | 2. | Baer’s law |
3. | Gauss law | 4. | Allen’s rule |
A thorn of Bougainvillea and a tendril of Cucurbita are an example of :
1. | analogous organs | 2. | vestigial organs |
3. | homologous organs | 4. | defense organs |
The wings of birds, the forelegs of a horse, and the upper limbs of humans are:
1. | analogous structures | 2. | homologous structures |
3. | vestigial structures | 4. | phylogenetic structures |
1. | Only I is correct | 2. | Only II is correct |
3. | Both I and II are correct | 4. | Both I and II are incorrect |
Statement I: | They evolved in a similar environment, rather than inherited from a recent common ancestor. |
Statement II: | They have a common descent and have evolved from a shared ancestor. |
1. | Statement I is correct; Statement II is incorrect |
2. | Statement I is correct; Statement II is correct |
3. | Statement I is incorrect; Statement II is correct |
4. | Statement I is incorrect; Statement II is incorrect |
Analogous organs arise due to:
1. | divergent evolution | 2. | artificial selection |
3. | genetic drift | 4. | convergent evolution |
The wings of an insect and the wings of a bird are examples of:
1. | analogous structures | 2. | homologous structures |
3. | vestigial structures | 4. | phylogenetic structures |