1. How does the environment affect the process of natural selection?

Answer: The environment affects natural selection. Speices need to adapt to changes in environmet. The weaker organisms which fail to adapt to environment perish while the stronger ones who adapt to the environment survive. This is how environment affects natural selection.

Answer:Harmful or beneficial mutations do influence an organism's survival. This is where natural selection comes into play ... This is how organisms evolve and adapt to changing environmental conditions over time.