In 1859, Charles Darwin proposed his theory of evolution based on natural selection. What
observation about the natural world does this
theory explain?
O how the fossil record was formed
O how species change over time
how a species ahvays retains its characteristics
how catastrophic events lead to extinctions

the potatoes have high sugar concentrations and although these potatoes were different we could seethe effects that their sugar concentrations had in different environments. for example, the potatoes in sample a, were placed in pure water. this created a hypertonic environment and caused the potatoes to draw in water from its surroundings. we saw the opposite happen with the potatoes in sample b when placed in the sodium chloride solution. the potatoes in this case were in a hypotonic solution and therefore lost water to their surroundings.