used for energy to grow and maintain life
producers use this process to create energy
plant eaters
meat eaters
bacteria that are autotrophs may use this process to create energy
a substance that can enter the atmosphere from decomposition or animal waste products
organisms that must eat to obtain energy
a model that shows amounts of energy or matter at each level in a food chain
organisms that eat meat and plants
a process where nitrogen is taken up by plants
ecological pyramid
photosynthesis
assimilation
heterotrophs
carnivores
herbivores
carbon
glucose
omnivores
chemosynthesis