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<em><u>Can I please have a brainlest? </u></em></h2>
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Explanation:
protein is the element responsible for building up of cells and the nucleic acid is embedded in the cell, so protein builds the whole cell including the nucleic acids.. the nucleic acid is also packed by histones which is a proteinous structure. both are important because, in the cell all organelles require protein for their growth and likewise the encoding of the genetic information carrier
 
        
             
        
        
        
Answer:
A. a lamp being turned on
B. a toaster being used to toast bread
D. a car horn honking
Explanation:
Energy transformation is the conversion of one form of energy to another form in accordance with the law of conservation of energy. According to this question, Phil is observing a flashlight, which turns chemical energy (batteries) into light energy. 
From the examples given in this question, the following are examples of scenarios that involve energy transformation:
- A lamp being turned on: This converts chemical energy to light energy. 
- A toaster being used to toast bread: This converts electrical energy to heat energy. 
- A car horn honking: This converts electrical energy to sound energy. 
Note that, melting of a chocolate does not transform any form of energy. 
 
        
             
        
        
        
Answer:
C. 
Explanation:
It is an output directly into the water.