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Class 9

ICSE · Class 9 · Environmental Science

Biodiversity

Chapter 2.iDiversity of LifeICSE · Class IX · examination 2028

1 world · 3 labs for this chapter.

Topics

Biodiversity
- Genetic, species and ecosystem diversity
- Indicator and keystone species
- Trophic levels, food chains and food webs
- Species interactions

Learning objectives

Explain the role of a keystone species in a food web.

Worlds

Places to explore freely · 1 world

WorldEcosystems & Food WebsA dry forest of eight species as a web that is also equations: draw who eats whom, pull the leopard and watch the deer and then the grass, run a drought, find the keystone, loose lantana and control it, measure a carrying capacity, follow a toxin up the chain, read the monsoon pulse, and rebuild a collapsed web

Labs

Fit this chapter · 3 labs

LabBiodiversity & ConservationBiology
LabOur EnvironmentBiology
LabFood Chains ExplorerEVS

Practice

Questions for Class 9 Environmental Science, with worked answers, on screen or as a printed paper.

Open the question bank

Previous chapterNatural Processes and Cycles Next chapterEcosystems, Their Functions, Services, Carrying Capacity and Threshold Level