Lesson 2.2 Flow of Energy in an Ecosystem

Front

What is a Heterotroph?

Back

An organism that gets its energy and nutrition from other organisms; also known as a consumer.

Front

What does the 10% Rule state?

Back

Only 10% of the energy is passed on from one trophic level to the next, while 90% is lost as heat due to cellular respiration or waste.

Front

How does energy transfer in an energy pyramid?

Back

Energy transfers from the bottom of the pyramid to the top.

Front

What type of organism is a tertiary consumer?

Back

An organism that eats secondary consumers, typically found at the top of the food chain.

Front

What is a Secondary Consumer?

Back

The third trophic level where animals eat herbivores.

Front

Define Autotroph.

Back

An organism that produces its own food, typically through photosynthesis; also known as a producer.

Front

What is a Decomposer?

Back

An organism that breaks down dead organic material, returning nutrients to the ecosystem.

Front

What is a Detritivore?

Back

An organism that feeds on dead organic matter and helps in decomposition.

Front

What are Trophic Levels?

Back

The hierarchical levels in an ecosystem, defined by how organisms obtain energy.

Front

What is a Food Chain?

Back

A linear sequence of organisms through which nutrients and energy pass as one organism eats another.