IB Biology D4.1 Definitions

This page contains our IB Biology definitions for D4.1. By learning each one of these definitions, you will fully cover the content for IB Biology 'Natural selection'.

All Topic 4 Sub-topics A4.1: Evolution & Speciation (HL)A4.1: Further speciation A4.2: Conservation Of Biodiversity B4.1: Adaptations B4.2: Ecological Niches C4.1: Populations & Communities C4.2: Energy & Matter Transfer D4.1: Natural Selection (HL)D4.1: Further natural selection D4.2: Stability & Change (HL)D4.2: Ecological stability D4.3: Climate Changes (HL)D4.3: Further climate change

adaptation

Characteristics that make an individual suited to its environment and way of life

natural selection

The favoritism of an organism's adaptations leading to better and prolonged survival over other organisms

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