Commensalism

Mutualism

Parasitism

Allellopathy

Predation

Competition

Photosynthesis

ATP (Adenosine Tri Phosphate)

Capture Mark Recapture Formula for population

Autotrophs (Self-feeder)

Heterotrophs (different feeder)

Adaptation

Producer

Consumer

Herbivore

Carnivore

Omnivore

Scavenger

Detritivore

Decomposer

Nitrate Cycle