Answer:
The answer is: Carbon dioxide and water released by cellular respiration are used in photosynthesis.
Explanation:
 
        
                    
             
        
        
        
Answer:
Water sample showing pink/purple color is an error.
Explanation:
Biuret is a blue color reagent that changes its color to pink/purple whenever it detects protein in a sample. Water don't contain proteins so it should not show pink/purple color instead it should maintain the blue color. Food items generally contain proteins so it show pink/purple color but it showed blue color.
Error might have caused by wrong marking of the samples, test tube marked with Water might contain a mystery food while Mystery food tube might contain water.
 
        
                    
             
        
        
        
<span>Amino acids are considered as the building blocks of protein's, so amino acid rich food simply means protein rich food. There are 20 classifications for amino acids but nine of them are essential since our body can't make them. Usually in diet important amino acids are Lysine (C6H14N2O2), Leucine (C6H13NO2), Valine (C5H11NO2), Tryptophan (C11H12N2O2), Isoleucine (C6H13NO2) Phenylalanine (C9H11NO2) and Threonine
(C4H9NO3).</span>
        
             
        
        
        
<span>A six carbon sugar is an example of </span>monosaccharide, <span>that can join with other molecule to form a </span>polysaccharide
<span>such as starch or cellulose
</span>
        
             
        
        
        
Quartz
Explanation:
Quartz is a framework silicate made up of interlocking SiO₂. It is the most resistant mineral to weathering. 
This is based on the Bowen's reaction series of minerals. 
From the series; 
- In a given melt, quartz is the last mineral to crystallize out of solution. 
- Olivine is usually the first
- Quartz being the last does not readily react with other substances. 
- This makes it resistant to agent of weathering. 
Learn more: 
Quartz brainly.com/question/5325748
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