Biodiversity and evolution A range of questions to test your knowledge on Module 3 of Unit 2. 2.5 / 5 based on 3 ratings ? BiologyDNA, genetics and evolutionASAll boards Created by: RhysWallCreated on: 19-05-12 17:41 Define biodiversity: The range of ecosystems, habitats and species in exsistence today 1 of 6 Why should random sampling be used to sample a habitat? To avoid bias and allow a representative sample to be taken 2 of 6 Species richness can be defined as: The total number of species in a habitat 3 of 6 Define selection pressure An external pressure that drives evolution in a particular direction 4 of 6 Reducing population size, reduces the gene pool of that species, which can increase what? The risk of extinction 5 of 6 CITES stands for what? The Convention on the International Trade in Endangered Species 6 of 6
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