IB Biology HL A2.1.7 Evidence for Last Universal Common Ancestor Luca Topic Practice

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A Unity and Diversity

A1.2 Nucleic acids

A2.1 Origins of cells

A2.1.1—Conditions on early Earth

A2.1.2—Cells as smallest units of life

A2.1.3—Spontaneous origin of cells

A2.1.4—Evidence for origin of carbon compounds

A2.1.5—Spontaneous formation of vesicles

A2.1.6—RNA as presumed first genetic material

A2.1.7—Evidence for last universal common ancestor (LUCA)

A2.1.8—Dating first cells and LUCA

A2.1.9—Evolution near hydrothermal vents

A2.2 Cell structure

A2.3 Viruses [HL only]

A3.1 Diversity of organisms

A3.2 Classification and cladistics [HL only]

A4.1 Evolution and speciation

A4.2 Conservation of biodiversity

B Form and Function

C Interaction and Interdependence

D Continuity and Change

IB/Biology/HL//Question Bank/A Unity and Diversity/A2.1 Origins of cells/A2.1.7—Evidence for last universal common ancestor (LUCA)

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