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Which one of the following sequences was proposed by Darwin and Wallace for organic evolution ?
[2003]
- a)Variations, natural selection, overproduction, constancy of population size
- b)Overproduction, variations, constancy of population size, natural selection
- c)Variations, constancy of population size, overproduction, natural selection
- d)Overproduction, constancy of population size, variations, natural selection
Correct answer is option 'B'. Can you explain this answer?
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Which one of the following sequences was proposed by Darwin and Wallac...
According to Darwinism there is differential reproduction, followed by struggle for existence, suitable variations are selected by nature-natural selection.
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Which one of the following sequences was proposed by Darwin and Wallac...
The correct answer is option B: Overproduction, variations, constancy of population size, natural selection.
Explanation:
Darwin and Wallace proposed the theory of organic evolution, which is based on the following sequence:
1. Overproduction: Organisms have the potential to produce more offspring than the environment can support. This leads to competition for limited resources.
2. Variations: Within a population, individuals exhibit variations in their traits. These variations can be inherited from parents or arise due to random mutations.
3. Constancy of population size: Despite the overproduction of offspring, populations tend to remain relatively stable in size over time. This is due to limited resources and other factors such as predation, disease, and competition.
4. Natural selection: In a population with variations, individuals with traits that are advantageous in their environment are more likely to survive and reproduce. This is known as natural selection. Over time, the frequency of advantageous traits increases in the population, leading to evolutionary change.
Explanation of each point:
1. Overproduction:
- Organisms have the potential to produce more offspring than the environment can support.
- This leads to competition for limited resources such as food, water, and shelter.
- Only a fraction of the offspring can survive to adulthood and reproduce.
2. Variations:
- Within a population, individuals exhibit variations in their traits.
- These variations can be inherited from parents or arise due to random mutations.
- Some variations may provide advantages, such as better camouflage or resistance to disease, while others may be disadvantageous.
3. Constancy of population size:
- Despite the overproduction of offspring, populations tend to remain relatively stable in size over time.
- This is due to limited resources and other factors such as predation, disease, and competition.
- The environment can only support a certain number of individuals, so population size tends to fluctuate around this carrying capacity.
4. Natural selection:
- In a population with variations, individuals with traits that are advantageous in their environment are more likely to survive and reproduce.
- This is known as natural selection.
- Over time, the frequency of advantageous traits increases in the population, leading to evolutionary change.
- Individuals with less favorable traits are less likely to survive and reproduce, so their traits become less common in the population.
Overall, the proposed sequence by Darwin and Wallace for organic evolution is: Overproduction, variations, constancy of population size, and natural selection. This sequence explains how populations change over time, leading to the diversity of life on Earth.
Explanation:
Darwin and Wallace proposed the theory of organic evolution, which is based on the following sequence:
1. Overproduction: Organisms have the potential to produce more offspring than the environment can support. This leads to competition for limited resources.
2. Variations: Within a population, individuals exhibit variations in their traits. These variations can be inherited from parents or arise due to random mutations.
3. Constancy of population size: Despite the overproduction of offspring, populations tend to remain relatively stable in size over time. This is due to limited resources and other factors such as predation, disease, and competition.
4. Natural selection: In a population with variations, individuals with traits that are advantageous in their environment are more likely to survive and reproduce. This is known as natural selection. Over time, the frequency of advantageous traits increases in the population, leading to evolutionary change.
Explanation of each point:
1. Overproduction:
- Organisms have the potential to produce more offspring than the environment can support.
- This leads to competition for limited resources such as food, water, and shelter.
- Only a fraction of the offspring can survive to adulthood and reproduce.
2. Variations:
- Within a population, individuals exhibit variations in their traits.
- These variations can be inherited from parents or arise due to random mutations.
- Some variations may provide advantages, such as better camouflage or resistance to disease, while others may be disadvantageous.
3. Constancy of population size:
- Despite the overproduction of offspring, populations tend to remain relatively stable in size over time.
- This is due to limited resources and other factors such as predation, disease, and competition.
- The environment can only support a certain number of individuals, so population size tends to fluctuate around this carrying capacity.
4. Natural selection:
- In a population with variations, individuals with traits that are advantageous in their environment are more likely to survive and reproduce.
- This is known as natural selection.
- Over time, the frequency of advantageous traits increases in the population, leading to evolutionary change.
- Individuals with less favorable traits are less likely to survive and reproduce, so their traits become less common in the population.
Overall, the proposed sequence by Darwin and Wallace for organic evolution is: Overproduction, variations, constancy of population size, and natural selection. This sequence explains how populations change over time, leading to the diversity of life on Earth.
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Which one of the following sequences was proposed by Darwin and Wallace for organic evolution ?[2003]a)Variations, natural selection, overproduction, constancy of population sizeb)Overproduction, variations, constancy of population size, natural selectionc)Variations, constancy of population size, overproduction, natural selectiond)Overproduction, constancy of population size, variations, natural selectionCorrect answer is option 'B'. Can you explain this answer?
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Which one of the following sequences was proposed by Darwin and Wallace for organic evolution ?[2003]a)Variations, natural selection, overproduction, constancy of population sizeb)Overproduction, variations, constancy of population size, natural selectionc)Variations, constancy of population size, overproduction, natural selectiond)Overproduction, constancy of population size, variations, natural selectionCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following sequences was proposed by Darwin and Wallace for organic evolution ?[2003]a)Variations, natural selection, overproduction, constancy of population sizeb)Overproduction, variations, constancy of population size, natural selectionc)Variations, constancy of population size, overproduction, natural selectiond)Overproduction, constancy of population size, variations, natural selectionCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following sequences was proposed by Darwin and Wallace for organic evolution ?[2003]a)Variations, natural selection, overproduction, constancy of population sizeb)Overproduction, variations, constancy of population size, natural selectionc)Variations, constancy of population size, overproduction, natural selectiond)Overproduction, constancy of population size, variations, natural selectionCorrect answer is option 'B'. Can you explain this answer?.
Which one of the following sequences was proposed by Darwin and Wallace for organic evolution ?[2003]a)Variations, natural selection, overproduction, constancy of population sizeb)Overproduction, variations, constancy of population size, natural selectionc)Variations, constancy of population size, overproduction, natural selectiond)Overproduction, constancy of population size, variations, natural selectionCorrect answer is option 'B'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which one of the following sequences was proposed by Darwin and Wallace for organic evolution ?[2003]a)Variations, natural selection, overproduction, constancy of population sizeb)Overproduction, variations, constancy of population size, natural selectionc)Variations, constancy of population size, overproduction, natural selectiond)Overproduction, constancy of population size, variations, natural selectionCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which one of the following sequences was proposed by Darwin and Wallace for organic evolution ?[2003]a)Variations, natural selection, overproduction, constancy of population sizeb)Overproduction, variations, constancy of population size, natural selectionc)Variations, constancy of population size, overproduction, natural selectiond)Overproduction, constancy of population size, variations, natural selectionCorrect answer is option 'B'. Can you explain this answer?.
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