Answer: The correct answer for the first question is- B) Mechanical.
Adaptation can be described as a process of change in an organism over time that facilitates its survival in the changing environmental conditions. It results due to mutation or genetic change in the individual that gives a benefit to the organism. It exhibits change in structure ( like succulent plants in desert), function, or behavior.
Mechanical is not a type of adaptation as it deals with movement of objects.
The correct answer for second question is- C) Variations.
Variation among organisms in a population results from change in the genetic material or their genetic sequences. Change at the genetic level is thus reflected in the phenotypes ( like different color of feathers in birds).
Thus, difference is in the feather color reflects variations.
 
        
             
        
        
        
<span>Adenosine triphosphate (ATP) consists of an adenosine molecule bonded to three phophate groups in a row. In a process called cellular respiration, chemical energy in food is converted into chemical energy that the cell can use, and stores it in molecules of ATP. This occurs when a molecule of adenosine diphosphate (ADP) uses the energy released during cellular respiration to bond with a third phosphate group, becoming a molecule of ATP. So the energy from cellular respiration is stored in the bond between the 2nd and 3rd phosphate groups of ATP. When the cell needs energy to do work, ATP loses its 3rd phosphate group, releasing energy stored in the bond that the cell can use to do work. Now its back to being ADP and is ready to store the energy from respiration by bonding with a 3rd phosphate group. ADP and ATP constantly convert back and forth in this manner.</span>
 
        
        
        
<span>The reason why Mendel recorded the results of so many plant crosses is that he wanted to demonstrate how certain genetic traits are expressed in different generations. This way he could demonstrate what traits are dominant or recessive in plants.</span>
        
             
        
        
        
Answer:
The answer is cellular respiration 
 
        
                    
             
        
        
        
The question is incomplete as it lacks the question and has only information regarding the question. however, the correct question is as follows : 
How many different genes are contributing to the wingless phenotypes in these mutant fly strains?
Answer:
The correct answer is - Two genes.
Explanation:
In the given question there are  two mutation groups based on the given seven results:
1st group : 
Mutations 1, complement with 2,4, and 7  and also complement each other, thus, are on the same gene.
2nd group: 
Mutations 3, 5, and 6 did not complement each other but complemented with mutations 1, 2, 4, and 7. Thus, these three mutations are present together on a different gene.