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 selection. wide variety of organisms that natural selection. Darwin’s theory of clip live, or have lived, on Earth. evolution by Describe the main stages of natural selection natural selection as: Discuss how they were all Horse ancestor: states that all formed. individual organisms within species evolved a particular species may BBC activity about Evolution. from simple life show a wide range of Darwin and evidence Watch BBC video clip forms that first phenotype variation for evolution; illustrating survival of the fittest developed more because of differences in extinction: (see resources). than three billion their genes years ago. Watch video clip about individuals with ancestor of horses from BBC The main stages characteristics most suited Walking with Beasts. of natural to the environment are selection.
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 suited to the environment are 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 about 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. clip Horse ancestor: Darwin and evidence for evolution; extinction:
AQA-8461-SOW-IVE.DOCX