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Q. No.What, according to Lamarck, is the reason for the especially long neck seen in giraffes?
| 1. | Ancestral giraffes with longer necks got more food and left more surviving offspring. |
| 2. | Ancestral giraffes stretched their necks to get food. |
| 3. | It was a divine creation. |
| 4. | The giraffe is the mammal where the number of cervical vertebrae is much more than the number of cervical vertebrae in other mammals. |
Subtopic: Theory of Evolution & Lamarckism | Biological Evolution |
81%
Level 1: 80%+
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Natural selection acts only on the traits that are:
1. Dominant
2. Recessive
3. Acquired during the lifetime of an individual
4. Inherited
1. Dominant
2. Recessive
3. Acquired during the lifetime of an individual
4. Inherited
Subtopic: Biological Evolution |
57%
Level 3: 35%-60%
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Geneticists refer to "fitness" as:
| 1. | the measure of an organism's adaptability to various habitats. |
| 2. | the number of mates each individual of the population selects. |
| 3. | the relative health of each individual in the population. |
| 4. | a measure of the contribution of a genotype to the gene pool of the next generation. |
Subtopic: Biological Evolution |
Level 3: 35%-60%
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‘An Essay on the Principle of Population’, a work that possibly influenced Darwin was authored by:
| 1. | A R Wallace | 2. | Charles Lyell |
| 3. | T R Malthus | 4. | Georges Cuvier |
Subtopic: Biological Evolution |
75%
Level 2: 60%+
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Q. No.
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