The correct answer in this question is letter B. Taste buds that are located at the tongue recognize some dissolved chemicals from the food for taste perception. Examples are hydrogen ions giving off sour taste, carbohydrates for sweet taste, magnesium ions give off bitter taste, sodium ions for salty taste and monosodium glutamate for umami taste.
        
             
        
        
        
Answer:
Well for the onion peel, since its a plant cell...it shall gain water from the solution as it has a lower water potentail,and hence increase in size, becoming turgid and tight, with the cell wall exerting pressure to stop it from bursting.
For the RBC, its an animal cell, and shall also gain water, but since there is no cell wall to support it, it shall soon gain so much water that it shall burst becuase of the pressure, through lysis, and shall die. 
Note, the plant cell does not die.
 
        
             
        
        
        
The correct answer for above statement is:
<h3>Exocrine = wax glands of the ear; endocrine = thyroid gland</h3><h3>Explanation:</h3>
Exocrine glands  are the glands which generate and discharge materials onto the surface by their ducts.Endocrine glands preferably than giving their substances by ducts, instantly discharge in the blood. Their outputs are designated as Hormones.
 
        
                    
             
        
        
        
The right answer is when host cell damage is detected.
Prophage is integrated into the host's DNA and is duplicated exactly like bacterial genes. Later, through a process called induction, the prophage can be excised from the bacterial genome and give birth to a free phage DNA, which undertakes a lytic cycle. Once released, the viral DNA Deforms the functions of the host cell, converting them into the production of a large number of phagic particles.As a result of this lytic infection, the bacteria dies.
Reactivation of the lithic cycle is often triggered by molecular signals of host damage or stress.