Energy Flow
Trophic Levels
Food Models
Vocabulary
100
Name a decomposer
Bacteria, Earth worm, Fungi...
100
In what trophic level do plants belong to?
Primary producers
100
What food model is in a triangular shape and shows the loss of energy from one trophic level to another?
A food pyramid
100
What are herbivores?
Consumers that eat plants
200
What are plants that produce food in the form of carbohydrates called?
Producers
200
What are the 4 trophic levels?
Primary producers, primary consumers, secondary consumers, tertiary consumers
200
What are food models used for?
They are used to understand energy flow
200
What are omnivores?
Consumers that eat both plants and animals
300
What are insects that feed off plants called?
Consumers
300
What trophic level do insects that feed off plants belong to?
Primary consumers
300
What food model shows the feeding relationships within an ecosystem and is composed of interconnected food chains?
A food web
300
What is biomass?
The total mass of living plants, animals, fungi, and bacteria in a given area
400
What is decomposition?
Decomposition is the breaking down of organic wastes and dead organisms into usable nutrients
400
What percent of energy is lost from one trophic level to another?
90%
400
Name the 3 common food models
Food pyramid, Food chain, Food web
400
What is biodegradation?
The action of living organisms to break down dead organic matter
500
What are two way every organism Interacts with it's ecosystem?
1) The organism obtains food energy from the ecosystem 2) The organism contributes energy to the ecosystem
500
List 4 ways that food energy is used by organisms.
-Obtain and digest food -Repair damaged tissues -Move -Increase growth -Body heat
500
What are at least 2 of the 3 types of ecological pyramids?
Biomass, numbers, and energy
500
What are detrivores?
Consumers that obtain their energy and nutrients by eating the bodies of small dead animals
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