Four years after the experiment started, Losos returned to the experimental islands and found that the anoles had changed. Think about some major misconceptions about natural selection

Explain how evidence from modern human genomes supports a recent African origin for Homo sapiens. How have findings from ancient DNA altered the simple out-of-Africa model?   this question is from a past paper i found, can it please be answered in extensive detail and in essay form as i feel it would benefit my personal revision to be able to answser a question of this nature about the topic.

Which of these conditions results the unstable resting membrane potential seen in pacemaker cells?   A Na+ ions move into the cell through specialized Na+ ion channels.   B Membrane permeability to K+ ions increases.   C Voltage-gated Ca2+ ion channels close.   D All of these are correct.

Staphylococcus aureus (staph) is a type of bacteria found on people's skin. These bacteria, along with most other types of bacteria, are usually harmless. They can occasionally cause serious infections that can lead to sepsis or death. Methicillin-resistant Staphylococcus aureus (MRSA) is difficult to treat because of resistance to some antibiotics. Use your knowledge of natural selection to explain how selection for methicillin-resistance in Staphylococcus aureus (MRSA) occurs. Focus on explaining the specifics of how this happens by talking about the variation that has to be present, the characteristics of that variation, impacts on fitness and success of the next generation. Your answer will not require any additional research and will only be a short paragraph based on what you think must be going on here based on other examples of natural selection