1/10
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced |
---|
No study sessions yet.
autotroph
organism that makes it own food and energy (auto = self)
heterotroph
organism that obtains energy by consuming other organisms
herbivore
plant eater duh
carnivore
meat eater duh
decomposer
a type of heterotroph; break down dead organisms and organic waste, recycling nutrients back into the ecosystem; critical for nutrient recycling
ex: fungi, bacteria, detritivores (worms, some insects)
every ecosystem needs…
primary producers (produce the first instance of energy and nutrients) and decomposers (recycle nutrients)
energy FLOW
energy starts as sunlight —> autotrophs —> consumers —> so on through out the trophic levels
chemical CYCLING
chemicals are returned to the environment by respiration or decomposition
two limiting factors of primary producers in terrestrial and aquatic ecosystems
terrestrial = temperature + moisture
aquatic = nutrients + sunlight
ecosystems with the greatest net primary production per unit area
tropical rain forests, estuaries, and coral reefs
ecosystems with largest total amount of Earth’s net primary production
oceans