IB Biology C4.2 Definitions

This page contains our IB Biology definitions for C4.2. By learning each one of these definitions, you will fully cover the content for IB Biology 'Energy & matter transfer'.

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

open ecosystem

An ecosystem that allows energy to enter and exit

trophic level

An organism's position in the food chain

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