This key facts covers Key Definitions — Learn These EXACTLY! within Ecosystems Communities for GCSE Biology. Topic 1: Ecosystems Communities It is section 2 of 15 in this topic. Use this key facts to connect the idea to the wider topic before moving on to questions and flashcards.
Topic position
Section 2 of 15
Practice
15 questions
Recall
20 flashcards
📌 Key Definitions — Learn These EXACTLY!
ECOSYSTEM
The interaction of a community of living organisms (biotic) with the non-living (abiotic) parts of their environment.
Example: A pond ecosystem includes fish, plants, insects (biotic) plus water, rocks, temperature, light (abiotic)
COMMUNITY
All the different species living and interacting in an ecosystem.
Example: All the fish, frogs, plants, bacteria, etc. in the pond = the pond community
POPULATION
All the organisms of ONE species living in an area.
Example: All the goldfish in the pond = the goldfish population
HABITAT
The place where an organism lives.
Example: The muddy bottom of the pond is the habitat for certain worms
INTERDEPENDENCE
Species in a community depend on each other for food, shelter, pollination, seed dispersal, etc.
Example: Bees need flowers for nectar; flowers need bees for pollination