Light rays change direction while passing through a lens because they are refracted. Refracted means "to change direction when it enters at an angle."
One reason why a species may go extinct is due to environmental changes. For example, if a environment undergoes deforestation / wild fires it’s environment will no longer be grassy green and would not allow for an animal like the Japanese rat snake to use its green coloring to camouflage from predators
I'm pretty sure that's false.
I am guessing that the molecule type will try to take over the cell OR it will excrete to much waste for the cell to handle and the cell will die.
I am just guessing, but I hope this helps