Could anyone tell me what would definitely be on an Evolution SAC? and how would I answer a natural selection question and get the full mark for it? Thanks Y'all
We wouldn't be able to tell you, since it's your teacher who is writing the SAC and they could put whatever they want on it. What you'd generally need in a natural selection question is as follows:
1. There is pre-existing variation within a population that is genetically determined
2. A selecting agent (or selection factor) makes one form/phenotype more likely to survive and therefore more likely to reproduce than other forms/phenotypes
3. The selection pressure continues over a number of successive generations
4. A significant change in allele frequency is established
You'd have to link each step to the scenario provided - if it's just general and you exactly copy the above you wouldn't get the marks because you wouldn't have linked it to the specific question provided.