Variation within a species can be measured using differences in the base sequence of DNA or in the amino acid sequence of proteins. The balance between conservation and farming. human birth weights. Calculate the rate of water uptake by the shoot in this experiment. © AQA 2021, This website uses cookies to improve your experience. Tropical latitudes have remained undisturbed for millions of years and thus, had a long evolutionary time for species diversification. number of different combinations of chromosomes following random
1 of 5. A-level Biology ; A-level Business Studies; A-level Chemistry; A-level Economics; A-level English; A-level English Literature; A-level French; A-level Geography; A-level German; Subject H-Z. They can also be used to indicate the adequacy of a fauna survey in representing the fauna in a particular area. gene, these exons are separated by one or more non-coding sequences,
D= diversty. environment. =
Species Richness Species richness is the number of species present in the forest. , where
The genetic code used is the same in all
A phylogenetic classification system attempts to arrange species into groups based on their evolutionary origins and relationships. N
A.2.3: Substitute numerical values into algebraic equations using appropriate units for physical quantities e.g. What is … Species richness as a measure of the number of different species in a community is met and a biological example in the rainforests of Madagascar is used to increase its relevance. 2. environments, the new allele of a gene might benefit its