As an energy i as a source of carbon and
Photosynthetic
synthesize organic molecules using
source
autotrophs synthesize organic molecules using carbon dioxide as a carbon source and inorganic molecules such as
as an energy source
organisms use organic molecules both as a source of carbon and as an energy source. Herbivores, carnivores, and detritivores
tissues, which often contain a great deal of carbon, but little
face fundamentally different trophic problems. Herbivores feed on
of plants. Detritivores feed on
plant
nitrogen Herbivores must also overcome the physical and chemical
that are nutritionally rich, but very well
material, which is even lower in nitrogen than living plant tissues. Carnivores consume
defended