(19) Deer are herbivores.. GNU-FDL.
(20).
(21) Jami Dwyer.http://en.wikipedia.org/wiki/File:Lacanja_burn.JPG. Public
Domain.
(22) This South China Tiger is a predator.. CC-BY-SA 2.5.
(23) http://en.wikipedia.org/wiki/Image:Parasitismus.jpg. GNU-FDL.
(24) http://commons.wikimedia.org/wiki/File:The_Greenhouse_Effect.svg.
CC-BY-SA 3.0.
(25) http://en.wikipedia.org/wiki/Image:Calopteryx_virgo_male.jpg. GNU-FDL.
(26) http://commons.wikimedia.org/wiki/Image:Buckelwal_Nahaufnahme.jpg.
GNU-FDL.
