You are presented with the question "what do animals lack?" and the following answer choices: 
- hearts
 - skin cells
 - h2o
 - the body's largest organ
 - organic matter
 - characteristics
 - green pigment chlorophyll
 - Chemical energy

Now knowing that chloroplasts contain the green pigment chlorophyll and animals lack chloroplasts, choose the best answer.


 

       green pigment chlorophyll  