Biology Unit 4 3.0 / 5 based on 1 rating ? BiologyA2/A-levelAQA Created by: SarahCreated on: 26-12-12 17:50 What is an ecosystem? All the interacting biotic and abiotic features in a specific area 1 of 6 Define population A group of individuals of the same species that occupy the same habitat at the same time 2 of 6 Define community The organisms of all species that live in the same area 3 of 6 Niche How an organism fits into its environment including all the biotic and abiotic factors that affect it 4 of 6 What is abundance? The number of individuals of a species in a given space 5 of 6 What is frequency? The likelihood of a particular species occurring in a quadrat 6 of 6
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