An isotonic solution is a solution in which the amount of dissolved material is equal both inside and outside of the cell. Water still flows in both directions, but an equal amount enters and leaves the cell.  Hope this helps. :)
 
        
             
        
        
        
Answer:
The 4 macromolecules are nucleic acids, carbohydrates, proteins, and lipids.
structure: Carbohydrates, lipid, and protein
Function: Nucleic acids, Carbohydrates, Lipid, and Protein
Explanation:
 
        
             
        
        
        
Answer:
Explanation: Bacteria and archaea are prokaryotes, while all other living organisms — protists, plants, animals and fungi — are eukaryotes. ... The vast majority of protists are unicellular or form colonies consisting of one or a couple of distinct kinds of cells, according to Simpson.
 
        
                    
             
        
        
        
I think the answer for Q2 is D but i could be wrong. sorry if i am
        
                    
             
        
        
        
The answer to the question above is letter a. melting.
>Exothermic is the giving off heat energy the  transfer of energy to the surroundings.
>In exothermic reaction, the energy is
usually transferred as heat energy
<span>> Other example of exothermic is combustion</span>