Which came first?
Chaining it together
Web Weaving
Energy Flow & Energy Pyramids
Who eats who?
100
a single individual in a population
What is an organism?
100
the first level of organisms
What are producers?
100
a model of feeding relationships in an ecosystem
What is a food web?
100
level of energy with the most stored energy
What is producer level?
100
organisms who eat producers
What are primary consumers?
200
all of the abiotic and biotic factors in an area
What is an ecosystem?
200
organisms that eat other organisms
What are consumers?
200
Represent the flow of energy through feeding relationships
What are the arrows in food web/food chain?
200
level with the least amount of energy stored
What is tertiary consumers?
200
organisms who can eat secondary and primary consumers
What are tertiary consumers?
300
All of the the organisms in a region
What is a community?
300
Each level in a food chain
What is a trophic level?
300
organisms who break down biotic materials
What are decomposers?
300

The further you go up the energy pyramid, 

What is "less energy is available." 

300
These organisms can be omivores.
What are secondary consumers?
400
All of the organisms in a species in an area.
What is a population?
400
The second trophic level contains ______________
What are primary consumers?
400
which type of consumer shows the most variety
What is secondary consumer?
400
Source of all energy in an ecosystem
What is the sun?
400
primary consumers are __________
What herbivores?
500
Large regions of the earth with similar features.
What is biome?
500
These types of consumers are often omnivores and carnivores.
What are secondary and tertiary consumers?
500
herbivores eat this level
What are producers?
500

Each trophic level passes on 

What is 10% of the energy used.

500
Tertiary consumers who hunt their prey are ________
What are predators?
M
e
n
u