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Answer: 1. Karl Ernst von Baer

Key idea: Karl Ernst von Baer showed that embryos do not pass through the adult stages of other animals.

Haeckel's recapitulation (biogenetic law) was the embryological support for evolution; von Baer pointed out that only the earliest stages are similar, and disproved it. Wallace and Darwin supported evolution, and Oparin proposed chemical origin of life.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report
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