Answer:
C (Chlorophyll)
Explanation:
Adenosine triphosphate (ATP) is an energy carrying molecule in all living cells. It is the usable form of energy by cells. Organisms are able to carry out cellular functions using the energy carried by ATP molecules. ATP like other molecules is made up of components that make up its chemical structure. 
ATP is composed of three structural components; A five-carbon sugar called RIBOSE at the core of its structure, attached to a nitrogenous base called Adenine and phosphate group (three in ATP). The energy in ATP is released when it loses its phosphate component. 
Chlorophyll is a pigment found in the Chloroplast of plant cells. It is another molecule that is made up of its own components e.g nitrogen, magnesium etc.
 
        
             
        
        
        
<span>Culturing unknown organisms, if this is the same as these answers: 
</span>a. human insulin production by bacterial cells 
<span>b. hepatities B vaccine production using yeast cells </span>
<span>c. insertion of genes from humans or plants into bacteria or viruses </span>
<span>d. culturing unknown organisms </span>
<span>e. amplification of DNA for microbe identification</span>
        
             
        
        
        
<span>Damaged dna is excised by endonuclease.
   Three excision repair pathways exist to repair single stranded DNA damage: Nucleotide excision repair (NER), base excision repair (BER), and DNA mismatch repair (MMR).</span>
        
             
        
        
        
When someone's pancreas stops producing the hormone that lowers blood sugar because the person hasn't eaten recently
When someone's pancreas hormone increases every time they eat, but decreases when they aren't eating
When a person takes calcium supplements so a gland will stop secreting a hormone that pulls calcium from the bones