produce more milk, animals that produce more, better flavoured or leaner meat. Selective breeding can lead to where ‘inbreeding’ some breeds are particularly prone to disease or inherited defects. Some breeds of dogs suffer from inbred defects. 4.6.2.2 Evolution Describe Darwin’s theory of 2 Look at exhibition to show the Use a model to explain evolution by natural wide variety of organisms that natural selection. Darwin’s theory of Video clip selection. live, or have lived, on Earth. evolution by natural selection states that Describe the main stages of Discuss how they were all Horse ancestor: all species evolved natural selection as: formed. from simple life individual organisms BBC activity Evolution. forms that first within a particular species Darwin and evidence Watch BBC video clip developed more may show a wide range of for evolution; illustrating survival of the fittest than three billion phenotype variation extinction: (see resources). years ago. because of differences in Watch video clip about The main stages of their genes ancestor of horses from BBC natural selection. individuals with Walking with Beasts. characteristics most
produce more milk, animals that produce more, better flavoured or leaner meat. Selective breeding can lead to ‘inbreeding’ where some breeds are particularly prone to disease or inherited defects. Some breeds of dogs suffer from inbred defects. 4.6.2.2 Evolution Darwin’s theory of evolution by natural selection states that all species evolved from simple life forms that first developed more than three billion years ago. The main stages of natural selection. Describe Darwin’s theory of evolution by natural selection. Describe the main stages of natural selection as: individual organisms within a particular species may show a wide range of phenotype variation because of differences in their genes individuals with characteristics most 2 Look at exhibition to show the wide variety of organisms that live, or have lived, on Earth. Discuss how they were all formed. BBC activity Evolution. Watch BBC video clip illustrating survival of the fittest (see resources). Watch video clip about ancestor of horses from BBC Walking with Beasts. Use a model to explain natural selection. Video clip Horse ancestor: Darwin and evidence for evolution; extinction:
AQA-8464-SOW-IVE.DOCX