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Selection
Explain natural selection by discussing: (a) genetic diversity within groups (b) the generation of numerous offspring (c) the competition for survival, including resource competition (d) the increased likelihood of reproduction for individuals that are more suited to their environment (e) how these individuals transmit their alleles to future generations
6
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60
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42
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90 min
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CambridgeIGCSEBiologyVariation and selection
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Selection outcomes6 objectives
- Explain natural selection by discussing: (a) genetic diversity within groups (b) the generation of numerous offspring (c) the competition for survival, including resource competition (d) the increased likelihood of reproduction for individuals that are more suited to their environment (e) how these individuals transmit their alleles to future generations
- Explain selective breeding by discussing: (a) how humans choose individuals with favorable traits (b) the mating of these individuals to create the next generation (c) the selection of offspring that exhibit the desired traits
- Summarize the process of selective breeding through artificial selection over multiple generations to enhance crop plants and domesticated animals, applying this to specific examples
- Explain adaptation as the process that occurs due to natural selection, leading populations to become increasingly suited to their environments over many generations
- Explain the emergence of antibiotic-resistant bacterial strains as a case study of natural selection
- Summarize the distinctions between natural selection and artificial selection
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