It's purpose is to break down energy from carbohydrates and other organic molecules stored during photosynthesis 
        
             
        
        
        
Answer:
d. are found on the same chromosome
Explanation:
Linked genes are genes that <em>sit close together on the same chromosome,</em> this closeness makes higher the probability to inherit them together, meaning they won't follow Mendelian inheritance. Considering this information we can conclude that the correct answer is d. are found on the same chromosome.
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I believe it is organ level
        
             
        
        
        
ATP can't store large amounts of energy for long periods of time.
        
             
        
        
        
Answer: Homologous structures
Explanation: They are structures which have similarities in various organisms but carry out opposite functions. This is the opposite of analogous structures