Which statement most accurately reflects what population geneticists refer to as "fitness"?

1.  Fitness is the measure of an organism's adaptability to various habitats.
2.  Fitness reflects the number of mates each individual in the population selects.
3.  Fitness refers to the relative health of each individual in the population.
4.  Fitness is a measure of the contribution of a genotype to the gene pool of the next generation.
Subtopic:  Darwin's Theory |
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What was the main point of difference between Darwin and Hugo de Vries regarding evolution?
 
1. Darwin did not believe in the inheritance of acquired traits while Hugo de Vries did.
2. Evolution for Darwin was gradual while Hugo de Vries believed mutation caused speciation.
3. Evolution for Darwin was a stochastic process and for Hugo de Vries was a determinist process.
4. Fitness for Darwin was reproductive fitness and for Hugo de Vries was physical fitness.
Subtopic:  Darwin's Theory | Hugo De Vries Theory of Evolution | Modern Theory of Evolution | Concept of Organic Evolution: Evidence |
 85%
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Consider the given two statements:
Assertion (A): Darwin's finches are an often-used textbook example of adaptive radiation.
Reason (R): Darwin's finches are Galapagos endemics famously adapted for a specialized feeding behavior.
 
1. Both (A) and (R) are True but the (R) does not correctly explain (A).
2. Both (A) and (R) are True and the (R) correctly explains (A).
3. (A) is False but (R) is True.
4. (A) is True but (R) is False.
Subtopic:  Darwin's Theory |
 62%
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Identify the incorrect statement:
1. Nature selects for fitness
2. There must be a genetic basis for getting selected and to evolve
3. Evolution is driven by use and disuse of organs
4. Those who are selected by nature reproduce more and leave more progeny
Subtopic:  Theory of Evolution & Lamarckism | Darwin's Theory | Biological Evolution |
 81%
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