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Difficulty: EasyLamarck's Theory of Evolution

Jean-Baptiste Lamarck proposed that physical characteristics acquired by an adult organism through the frequent use or disuse of its organs can be directly transmitted to the next generation.

Answer: Answer

Answer

The statement is True. Lamarck's theory asserts that somatic modifications acquired during an individual's lifetime due to environmental adaptation and organ use are inherited by offspring.
The statement is True because Jean-Baptiste Lamarck hypothesized that traits acquired by an organism during its lifetime through environmental influence and organ usage are passed down to subsequent generations.

Step-by-Step Solution

1
Identify the core evolutionary mechanism described in the stem.
The statement describes the passage of phenotypic modifications acquired during an organism's life to its descendants.
Understanding the specific mechanism is required to evaluate historical evolutionary hypotheses.
2
Evaluate whether this concept matches Lamarck's postulates.
Lamarckism is specifically defined by the Law of Use and Disuse and the Law of Inheritance of Acquired Characteristics.
Since the stem accurately restates Lamarck's second postulate, the statement is True.

Key Concept

Inheritance of Acquired Characteristics in Lamarckism
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Topics

Lamarck's Theory of Evolution

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