What is a food chain?
A cycle of nutrients
A type of habitat
A linear sequence showing energy transfer between organisms
A group of unrelated species
What is a food web?
A type of plant
A network of interconnected food chains
A single feeding relationship
A form of energy
What are trophic levels?
Steps in energy transfer within an ecosystem
Types of soil
Types of weather
Levels in the atmosphere
Why are there fewer organisms at higher trophic levels?
Energy increasess.
Producers dominate
Energy is lost at each transfer
Predators reproduce faster
What role do decomposers play?
They reduce sunlight
They recycle nutrients
They stop energy flow
They produce energy
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