7.1.1 - Communities

State the levels of organization in an ecosystem.

Individual, population, community, ecosystem.

What is an ecosystem?

The interaction between the living components and non-living components.

State the factors that plants may compete for.

Light, space, water, mineral ions from soil.

State the factors that animals might compete for.

Food, mates, territory

What is intraspecific competition?

Competition within a species.

What is interspecific competition?

Competition between different species.

What is interdependance?

Different species in an ecosystem depend on each other for various resources, if one species is removed, the whole community may be affected.

What is a stable community?

A community in which all the biotic factors (the different species) and all abiotic factors are balanced so that population sizes remain relatively constant.