BRAINCAKEThe Impact of Agriculture
Usually ecosystems increase in the number of different species as they develop and increase the index of diversity.
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Key terms in this lesson
- gene
- A length of DNA that codes for a polypeptide or a functional RNA molecule, at a specific locus on a chromosome.
- gene pool
- The complete range of alleles present in a population at a given time.
- species
- A group of organisms with similar characteristics that can interbreed to produce fertile offspring.
- index of diversity
- A numerical measure that takes into account the number of species and the number of individuals of each species in a community.
More in Biodiversity
- Phylogeny
- Index of Diversity
- Example Index of Diversity
- Species Diversity and Ecosystems
- Balancing Conservation and Farming
- Managing Ecosystems
- Investigating Diversity
- Comparing DNA
All 33 lessons in Biodiversity · All AQA AS-level Biology topics