Making it wrinkly and unpleasant shade sometimes
They are similar to animals because they can move and they are heterotrophs (heterotrophs are organisms that cannot manufacture their own food and instead get their food and energy by taking it from organic substances like plant matter).
Your system should rid traces of bars within 4 days
Even having a cold or sore throat makes you more susceptible to dehydration because you're less likely to feel like eating or drinking when you're sick. So yes you can get dehydrated in the cold.