Question: Fact 1: Chloroplasts contain the green pigment chlorophyll.  Fact 2: Animals lack chloroplasts.  Given the two facts above, answer the question "what do animals lack?" with the following options:  - hearts  - skin cells  - h2o  - the body's largest organ  - organic matter  - characteristics  - green pigment chlorophyll  - Chemical energy
Answer:
green pigment chlorophyll