Answer;
-Hydroxyl groups.
-They have multiple hydroxyl groups.
Explanation;
-Monosaccharides are the simplest form of sugars found in common food items such as honey, cane sugar, fruits. They are the building blocks of other carbohydrates (disaccharides and polysaccharides).
-The are formed by three elements and three elements only: Carbon (C), Hydrogen (H) and Oxygen (O). Monosaccharides have two broad classifications on the basis of the functional group present in them, that is; aldose (contains aldehyde group) and ketose (contains a keto group).
-Monosaccharides contain multiple hydroxyl groups, and are responsible for the hydrophillic property of monosaccharides allowing them to dissolve in water easily.
Answer : B) In step 2, there was a chemical change which was observed in sugar.
Explanation : In A step 2 there was a physical change that was seen. By just boiling the dissolved salt solution salt was obtained. Therefore, it is a physical change. In B step 2 there was a chemical change seen as sugar solution was thickened and turned brown. It was not obtained in its original form; there was a chemical reaction that took place during sugar evaporation. As chemical change is the one where the reaction is irreversible.
Therefore only in B step 2 there was a chemical change that was observed.
A biologist researching liver function in mice can administer drugs that are meant for human use to the rats and find out the effects this drugs will have on the rats' liver. Whatever result she find can be extrapolated to humans.
Thus, the biologist can contribute to medial advancements by using her findings to predict the effects of these drugs on human livers.
I also think that the answer is C as it is the only one that is actual evidence
I believe the answer is a