1. | 20 billion years back | 2. | 10 billion years back |
3. | 4.5 billion years back | 4. | 3.0 billion years back |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Which theory, regarding the origin of life, is alternatively also called “panspermia”?
1. | Special Creation | 2. | Spontaneous Generation |
3. | Cosmozoan Theory | 4. | Biochemical Evolution |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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. |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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. |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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. |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
1. | Georges Cuvier | 2. | Lyell |
3. | Hugo de Vries | 4. | Alfred Russell Wallace |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Palaeontological evidence for evolution refers to the:
1. | development of the embryo | 2. | homologous organs |
3. | fossils | 4. | analogous organs |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Fossils are generally found in:
1. | Sedimentary rocks | 2. | Igneous rocks |
3. | Metamorphic rocks | 4. | Any type of rock |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The “Biogenetic Law” was given by :
1. | von Baer | 2. | Ernst Haeckel |
3. | Hugo de Vries | 4. | Theodosius Dobzhansky |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.