The **inheritance of acquired characters** (e.g. organs become stronger through use, weaker through disuse) was the theory of:
ADarwin
BLamarck (1809)
CWallace
DHugo de Vries
Answer & Solution
Correct answer: B. Lamarck (1809)
Lamarck (1809) proposed that organs change with use/disuse and that acquired characters are passed to offspring. Weismann disproved it by cutting rat tails for 21 generations without observing inherited tail shortening.
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