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LSC 1108 Chapter 24

Horizontales
The portion of the Earth that contains living organisms.
Where fresh and salt water mix.
Feed on plants and animals in an ecosystem.
Rock layer that contains water and releases it to wells and springs.
Are consumers that have to consume food.
The number of organisms multiplied by the weight of organic matter contained in one organism.
Cycles, or pathways, by which chemicals circulate through ecosystems.
An ecological ___ is the flow of energy with large losses between successive trophic levels.
Type of heterotroph that release inorganic substances for plants.
Feed directly on producers in an ecosystem.
A diagram that describes trophic, or feeding, relationships.
Decomposing particles of organic matter.
Verticales
The living components of ecosystems.
Organisms that produce their own food.
Evaporation of water from plants.
A source from which organisms can take chemicals.
The role of an organism in an ecosystem.
A diagram that show a single path of energy flow.
The nonliving components of an ecosystem.
A specific area of the biosphere where organisms interact with each other and with the physical and chemical environment.
Use inorganic nutrients and an outside source of energy to produce organic nutrients.
A source of chemicals unavailable to producers.