B16.1 The importance of communities Flashcards
What is a community?
Made up of populations of different species of plants and animals that are all interdependent in a habitat
What is a population
A population is a group of organisms of one species that interbreed and live in the same place at the same time.
What is an ecosystem?
A community of organisms interacting with the non-living abiotic elements of their environment
What are the features of a community?
Plants produce by photosynthesis Animals eat plants Animals pollinate plants Animals eat other animals Plants need nutrients from animal droppings
What is interdependence?
The living beings in an ecosystem depend on each other for their survival and growth.
What are some examples of a stable community?
Environmental factors are relatively constant - may change but in a regular pattern such as tropical rainforest
Fall tree allows light into the first flower so new seedlings can grow
Number of species remain relatively constant
What is a stable community?
Where all the species and the environmental factors are in balance so that population sizes remain fairly constant
