Can we prove evolution? how do organisms change? salvidor luria asked whether bacteria evolve like other organisms. do darwinian principles apply to bacteria; or are they more subject to environment? using a brilliant experimental design involving virus resistance in bacteria he was able to clearly demonstrate what phenomenon?

Astudent conducts an experiment to determine how the amount of water given to a plant affects it growth what is the dependent variable for this experiment

How is the carbon cycle related to global warming ?

How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?