Answer:
Attached R side groups
Explanation:
The proteins are one of the important biomolecules which are directly coded by the genetic material of an organism.
The proteins are composed of the amino acids which possess, an amine group, a carboxylic group and an attached side group called the R group.
It is the R group of an amino acid which determines whether the amino acid will a polar or a non-polar amino acid molecule thus it determines the properties of the amino acid in terms of chemical properties. The R side group are involved in the formation of bonds with the substrate of the environment and the tertiary structure of the proteins.
Thus, the presence of different R group is the key difference in 20 amino acids.
 
        
                    
             
        
        
        
Answer:
The solutes will simply bounce off of the semipermeable membrane
Explanation:
Since there is no difference in [solute] there will be no osmotic flow of water, but water will still move between the two chambers because the membrane is freely permeable to water.
 Hope this helps! Brainliest?? Anyways have a great day my loves <3
 
        
             
        
        
        
Answer:
Explanation:
pollen grain sticks to the stigma, where the pollen build up a pollen tube to the ovule, after fertilization the ovary then builds up to develop into a fruit, depending of the the type of flower the fruit can be determined 
 
        
             
        
        
        
Answer:
I would say We don't have enough evidence or Cell theory is still changing.
Explanation:
There are so many cells in everything so it's almost impossible to know exactly what is going on. Theories about cells have been going on for over 500 years, and we still don't know exactly what is what.
 
        
             
        
        
        
I believe B is the answer..