AchievedDescribing:
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MeritExplaining:
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ExcellenceLinking:
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Evolutionary processes include
the following biological ideas:
- role of mutation
- gene flow
- role of natural selection and genetic drift
- modes of speciation (sympatric, allopatric)
- reproductive isolating mechanisms that contribute to speciation (geographical, temporal, ecological, behavioural, structural barriers, polyploidy)
- patterns of evolution such as divergence, convergence, adaptive radiation, co-evolution, punctuated equilibrium, and gradualism.
Know your basic terms
Species
A group of living organisms consisting of similar individuals capable of exchanging genes to produce fertile offspring |
Population
A group of individuals of the same species that are found in a particular geographic location |
Evolution
Change to the gene pool of a population over time due to natural selection, mutations, etc. Individuals do not evolve, populations evolve |
Speciation
The formation of a new species, usually by the division of a single species into two or more genetically distinct ones |