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Biology

GCSE · AQA

QuestionsFlashcards

Communicable Diseases
Monoclonal Antibodies
- Producing Monoclonal Antibodies
  6
- Uses of Monoclonal Antibodies
  7
Plant Disease
- Detection and Identification of Plant Diseases
  6
- Plant Defence Responses
  6

Communities Flashcards

All 6 cards in this deck

What is an ecosystem?: The interaction of a community of living (biotic) organisms with the non-living (abiotic) parts of their environment.
What is a community in ecology?: All the populations of different species living in the same habitat, interacting with each other.
List the levels of organisation in an ecosystem from smallest to largest.: Individual organism → population → community → ecosystem.
What is interdependence in a community?: Species depend on each other for things like food, shelter, pollination and seed dispersal, so removing one species can affect the whole community.
What is a stable community?: One where all the species and environmental factors are in balance, so population sizes remain fairly constant.
True or false? A habitat and a population mean the same thing.: False. A habitat is the place where an organism lives; a population is all the organisms of one species living in that habitat.