1What is an ecological niche?
A species’ role, resource use, interactions and environmental requirements in an ecosystem
2Give one biotic factor and one abiotic factor
Predators and sunlight
3How can niche differentiation reduce competition?
Species use different resources, places or times, so their needs overlap less
4What is mutualism?
An interaction in which both species benefit
5What is parasitism?
An interaction in which a parasite benefits while its host is harmed
6What is carrying capacity?
The population size an environment can support sustainably with its available resources
7Give one density dependent factor that limits population growth
Competition for food or predation
8Why does population growth slow as a population approaches carrying capacity?
Resources become more limited and density dependent factors become stronger