1. | 20 billion years back | 2. | 10 billion years back |
3. | 4.5 billion years back | 4. | 3.0 billion years back |
Which theory, regarding the origin of life, is alternatively also called “panspermia”?
1. | Special Creation | 2. | Spontaneous Generation |
3. | Cosmozoan Theory | 4. | Biochemical Evolution |
The theory of spontaneous generation stated that:
1. | life arose from living forms only |
2. | life can arise from both living and non-living |
3. | life can arise from non-living things only |
4. | life arises spontaneously, neither from the living nor from the non-living |
I: | The first form of life could have come from pre-existing non-living organic molecules (e.g. RNA, protein, etc.) |
II: | The formation of life was preceded by chemical evolution, i.e., the formation of diverse organic molecules from inorganic constituents. |
In 1953, S. L. Miller created primitive earth conditions in the laboratory and gave experimental evidence for the origin of the first form of life from pre-existing non-living organic molecules. The primitive earth conditions created include:
1. | low temperature, volcanic storms, an atmosphere rich in oxygen |
2. | low temperature, volcanic storms, reducing atmosphere |
3. | high temperature, volcanic storms, non-reducing atmosphere |
4. | high temperature, volcanic storms, reducing atmosphere containing CH4, NH3 etc. |
I: | Fitness, according to Darwin, refers ultimately and only to reproductive fitness. |
II: | Those who are a better fit in an environment, leave more progeny than others. |
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. |
1. | Georges Cuvier | 2. | Lyell |
3. | Hugo de Vries | 4. | Alfred Russell Wallace |
Palaeontological evidence for evolution refers to the:
1. | development of the embryo | 2. | homologous organs |
3. | fossils | 4. | analogous organs |
Fossils are generally found in:
1. | Sedimentary rocks | 2. | Igneous rocks |
3. | Metamorphic rocks | 4. | Any type of rock |
The “Biogenetic Law” was given by :
1. | von Baer | 2. | Ernst Haeckel |
3. | Hugo de Vries | 4. | Theodosius Dobzhansky |