An expiremental constant is the amount of water and sunlight, the variable is the music
        
                    
             
        
        
        
<span>(Chloroplasts) 
are found in unicellular organisms such as plants, and 
(Mitochondria)
 is found in almost all cells. (Chloroplasts convert light energy into sugar using photosynthesis,) and the (mitochondria converts sugar into ATP using cellular respiration.)
Both the mitochondria and chloroplast convert energy, have its own DNA, and are enclosed by two membranes.
:) Good? </span>
        
             
        
        
        
Answer:
Anatomy. Species may share similar physical features because the feature was present in a common ancestor (homologous structures).
Molecular biology. DNA and the genetic code reflect the shared ancestry of life ...
Biogeography ...
Fossils ...
Direct observation
Explanation: