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Evolution: Origin of Life and Evidences
Biology · Chapter 9 · Unit 2: Genetics and Evolution
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Your path through this chapter
Visual lesson Beta
- Part 1: Origin of life and morphological evidence15 slides
- Part 2: Embryology, fossils, biogeography and molecules15 slides
Flashcards Beta
30 cards for quick recall of key terms and facts.
Review the cards Step 3: Not startedPractice
62 board-style questions with instant checks: Multiple choice 27, Short answer 17, Assertion and reason 6, Fill in the blanks 4.
Practise Step 4: Not startedChapter test Free
Short and long chapter tests in board pattern, with results and analysis.
Step 5: Not started- Chapter test (long) — Evolution: Origin of Life and Evidences · 40 marks · 100 min
- Chapter test (short) — Evolution: Origin of Life and Evidences · 20 marks · 50 min
Topics 5
- Origin of life: abiogenesis, biogenesis, panspermia; Oparin-Haldane theory, protobionts and coacervates; need for a reducing atmosphere
- Miller and Urey experiment
- Morphological evidences: homologous and analogous organs, divergent and convergent evolution, vestigial organs
- Embryological evidence (recapitulation; ontogeny and phylogeny); palaeontological evidence (fossils, radiocarbon dating, geological time scale)
- Biogeographical and molecular evidences; adaptive radiation (Darwin's finches, Australian marsupials)