A system comprising all the biotic and abiotic factors in an area and all the interactions among them.

A diagram that shows the trophic levels of organisms in a food web.

Organisms that make complex, energy-containing biomolecules from simple inorganic molecules using energy captured from light or inorganic chemical compounds.

An organism that must consume other organisms for nutrients.

Animals that eat secondary consumers.

Organisms that consume only plants.

Animals that eat other animals.

Organisms such as bacteria and fungi that break down the remains of dead plants and animals without need for internal digestion.

A single, linear path showing the flow of energy from the sun to producer and through different levels of consumers.

Overlapping food chains with different pathways for the flow of food energy in an ecosystem.

Starts with radiant energy captured by producers through photosynthesis, and continues with energy flow from producers to consumers and finally to decomposers.

Starts with chemical energy stored in organic debris or waste from other food webs; continues flowing energy directly to decomposers. They become food and energy for consumers, and again, decomposers.

An organism that gets their energy by feeding on producers in the food chain.

Animals that eat other animals that eat plants.

The position an organism occupies on the food web.

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Unit 6 part 1

Flow of Energy

Term	Definition
Ecosystem	A system comprising all the biotic and abiotic factors in an area and all the interactions among them.
Energy Pyramid	A diagram that shows the trophic levels of organisms in a food web.
Producers	Organisms that make complex, energy-containing biomolecules from simple inorganic molecules using energy captured from light or inorganic chemical compounds.
Consumers	An organism that must consume other organisms for nutrients.
Tertiary Consumers	Animals that eat secondary consumers.
Herbivores	Organisms that consume only plants.
Carnivores	Animals that eat other animals.
Decomposers	Organisms such as bacteria and fungi that break down the remains of dead plants and animals without need for internal digestion.
Food Chain	A single, linear path showing the flow of energy from the sun to producer and through different levels of consumers.
Food Web	Overlapping food chains with different pathways for the flow of food energy in an ecosystem.
Grazing Food Web	Starts with radiant energy captured by producers through photosynthesis, and continues with energy flow from producers to consumers and finally to decomposers.
Detrital Food Web	Starts with chemical energy stored in organic debris or waste from other food webs; continues flowing energy directly to decomposers. They become food and energy for consumers, and again, decomposers.
Primary Consumers	An organism that gets their energy by feeding on producers in the food chain.
Secondary Consumers	Animals that eat other animals that eat plants.
Trophic Level	The position an organism occupies on the food web.

Created by: Davis001

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