Answer:
Tropomyosin
Explanation:
The calcium binding to troponin and induces the muscle contraction. The active binding site gets exposed due to the calcium binding.
The calcium ions then attaches with troponin molecule. This changes the shape of troponin and removes the tropomyosin protein from the binding site.  No ATP is available during this process.
Thus, the correct answer is option (d).
 
        
                    
             
        
        
        
C prepcepataion that’s the right answer
        
                    
             
        
        
        
I believe the answer you're looking for is Archaea-bacteria. 
        
             
        
        
        
Answer:
Number <u>3</u> is the chloroplast. The chloroplast helps the plant obtain food by <u>photosynthesis</u>. Number <u>1</u> is the central vacuole. The central vacuole helps a plant maintain its structure by <u>turgor pressure</u>.
 
        
             
        
        
        
Closely related but different, distantly related but similar