We ( can cannot) test this hypothesis. We can place lichen samples in conditions withand observe the effect on their growth.

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.

b is the answer and if you need further with anything message me

b. climate change will cause an increase in biodiversity of all ecosystems.

hope this