Biology » Biodiversity


This page covers:

food chains, trophic levels, peat bogs,  deforestation, global warming, biodiversity, global warming, biomass transfers, ecosystems

Key Words

Biodiversity - variety of different species of organisms on Earth or in an ecosystem.

Greenhouse gases - gases in the atmosphere which help keep the warm energy in.

Global Warming - when the Earth heats up because of the increasing levels of greenhouse gases.

Climate change - the Earth weather patterns change and remain in place for an extended period of time.

Deforestation - the clearing of forests. Can cause:

  • More CO2 in the atmosphere which can lead to global warming.
  • More CO2 is released from the burning of trees.
  • Less biodiversity, species becoming extinct when their homes are destroyed.

Peat Bogs - areas of land that are acidic and waterlogged.

Trophic levels - different stages of a food chain.

  • Trophic level 1: Producers eg. plants & algae.
  • Trophic level 2: Primary consumers eg. Herbivores that only eat plants & algae.
  • Trophic level 3: Secondary Consumers eg. Carnivores that are meat eaters.
  • Trophic level 4: Tertiary Consumers eg. Carnivores that have no predators.

Food security - having enough food to feed a population.

Mycoprotein - used to make high-protein meat substitutes. It's made from the fungus Fusarium.


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