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Darwin's theory of natural selection is based on the following observations, except:
- a)Overproduction of offspring
- b)Genetic variation within a population
- c)Struggle for existence
- d)Use and disuse of organs
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Darwins theory of natural selection is based on the following observat...
Darwin's Theory of Natural Selection
Charles Darwin’s theory of natural selection is foundational to evolutionary biology. It comprises several key observations that explain how species evolve over time. Among these, the notion of "use and disuse of organs" does not belong to Darwin’s framework.
Key Observations of Natural Selection
- Overproduction of Offspring: Organisms tend to produce more offspring than can survive. This leads to competition for resources.
- Genetic Variation within a Population: Individuals within a species exhibit variations in traits. These genetic differences can affect survival and reproduction.
- Struggle for Existence: Due to limited resources, individuals must compete for survival. This competition is a driving force of natural selection.
Use and Disuse of Organs
- The concept of "use and disuse" originates from the ideas of Jean-Baptiste Lamarck, who suggested that organisms can change during their lifetimes based on how much they use certain traits or organs. For example, he believed that giraffes developed long necks because their ancestors stretched to reach higher leaves.
- In contrast, Darwin did not support this idea. He emphasized that traits are selected based on their advantages in survival and reproduction, rather than being acquired or lost through use.
Conclusion
Understanding these observations is crucial for grasping the mechanisms of evolution. The rejection of Lamarck’s idea of use and disuse highlights how natural selection relies on existing variations rather than acquired changes, reinforcing the importance of genetic inheritance in the evolutionary process.
Charles Darwin’s theory of natural selection is foundational to evolutionary biology. It comprises several key observations that explain how species evolve over time. Among these, the notion of "use and disuse of organs" does not belong to Darwin’s framework.
Key Observations of Natural Selection
- Overproduction of Offspring: Organisms tend to produce more offspring than can survive. This leads to competition for resources.
- Genetic Variation within a Population: Individuals within a species exhibit variations in traits. These genetic differences can affect survival and reproduction.
- Struggle for Existence: Due to limited resources, individuals must compete for survival. This competition is a driving force of natural selection.
Use and Disuse of Organs
- The concept of "use and disuse" originates from the ideas of Jean-Baptiste Lamarck, who suggested that organisms can change during their lifetimes based on how much they use certain traits or organs. For example, he believed that giraffes developed long necks because their ancestors stretched to reach higher leaves.
- In contrast, Darwin did not support this idea. He emphasized that traits are selected based on their advantages in survival and reproduction, rather than being acquired or lost through use.
Conclusion
Understanding these observations is crucial for grasping the mechanisms of evolution. The rejection of Lamarck’s idea of use and disuse highlights how natural selection relies on existing variations rather than acquired changes, reinforcing the importance of genetic inheritance in the evolutionary process.
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Darwins theory of natural selection is based on the following observat...
Darwin's theory of natural selection does not include the concept of use and disuse of organs. The theory is based on observations such as the overproduction of offspring, genetic variation within populations, the struggle for existence, and the differential reproductive success of individuals with favorable variations.
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Darwins theory of natural selection is based on the following observations, except:a)Overproduction of offspringb)Genetic variation within a populationc)Struggle for existenced)Use and disuse of organsCorrect answer is option 'D'. Can you explain this answer?
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Darwins theory of natural selection is based on the following observations, except:a)Overproduction of offspringb)Genetic variation within a populationc)Struggle for existenced)Use and disuse of organsCorrect answer is option 'D'. Can you explain this answer? for JAMB 2025 is part of JAMB preparation. The Question and answers have been prepared according to the JAMB exam syllabus. Information about Darwins theory of natural selection is based on the following observations, except:a)Overproduction of offspringb)Genetic variation within a populationc)Struggle for existenced)Use and disuse of organsCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for JAMB 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Darwins theory of natural selection is based on the following observations, except:a)Overproduction of offspringb)Genetic variation within a populationc)Struggle for existenced)Use and disuse of organsCorrect answer is option 'D'. Can you explain this answer?.
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