Flow of energy Flashcards
Ecosystem
a biological community of interacting organisms and their physical environment.
Producer
an organism that produces organic compounds from simple substances such as water and carbon dioxide
Consumer
Consumer in a food chain are living creatures that eat organisms from a different population. … Like sea angels, they take in organic moles by consuming other organisms, so they are commonly called consumers. Heterotrophs can be classified by what they usually eat as herbivores, carnivores, omnivores, or decomposers.
Decomposer
An organism, often a bacterium, fungus, or invertebrate that feeds on and breaks down dead plant or animal matter, making organic nutrients available to the ecosystem.
Food chain
in ecology, the sequence of transfers of matter and energy in the form of food from organism to organism.
Food web
a system of interlocking and interdependent food chains.
Photosynthesis
the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct.
Cellular resperation
the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.