c) makes them immune to all diseases
This is the choice you are looking for because is ISN'T a way that adaptation helps the organism survive life. If it is immune to all diseases, that organism would probably die because of all the diseases that it is immune to.
The other choices have adaptations that will help the organism survive.
Hope I helped.
Short tem complications of diabetes, also called acute complications, can be:
fatigue, polyuria (need to urinate very often), blurry vision, ketoacidosis (break down of fatty acids), hyperglicemia, infections, polydipsia (always thirsty).
All this symptoms are because the glucose that we get from our diets it's not going to the cells, like it should. Instead, it stays in the blood and the cells don't recieve the energy they need, resulting in fatigue of the person.
The salinity is the concentration of salt in a given liquid. So the answer is 'the water has a salt concentration of 35 parts per thousand'.