Resources

Biology: Edexcel IGCSE, topic 5.1.2

Competition for Resources

Organisms need resources from both abiotic and biotic parts of an ecosystem to survive and reproduce. But resources are not infinite. Different species and different individuals compete for resources.

Competition between plants

Competition between plants

  • Plants often compete for water and mineral ions (minerals) from the soil, as well as for light and space.
Competition between animals

Competition between animals

  • Animals often compete for food, mates and territory.

Test yourself on Resources

  • Which of these resources do animals compete for in an ecosystem?

  • Which of these resources do plants not compete for?

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