Producers, Consumers, Decomposers
Food Webs and Chains Energy Pyrami
Energy Pyramid
Food Chain
Food Web
Symbiosis
Carrying Capacity
Limiting Factors
100
Plants are called _________ because they make their own food.
Producers
100
Create a food chain using the organisms below
A. clams - a primary consumer
B. sardines - a secondary consumer
C. sharks - a tertiary consumer
D. kelp - a primary producer
kelp to clams to sardines to sharks
100
irst layer of the energy pyramid
Producer
100
The organism that starts the food chain
producer/ autotrophic/plant
100
A series of food chains all together is a
food web
100
When ants protect a tree and the tree provides them with shelter (type of symbiosis)
Mutualism
100
What do we call the dotted line labeled "D" 
Public
Carrying Capacity
100
Something that limits the species of a population in an ecosystem
Limiting Factor
200
One food chain in an ecosystem might be grass, a mouse, a snake and a hawk. Which one is the producer?
Grass
200
A food web is a cycle because it transfers _____ from one organism to another.
A. A chain
B. A web
C. Energy
D. Nothing
C. Energy
200
The amount of energy given to each trophic level from the level below is
10%
200
The arrows represent
the flow of energy
What eats what
200
The second layer to eat something is called _______________. They are located in the ____ trophic level.
secondary consumers
3rd trophic level
200
What is a close and/or long time relationship between two species?
Symbiosis
200
In an ecosystem, what is the carrying capacity?
the maximum number of individuals of a population that the environment can support
200
Give at least 2 examples of a BIOTIC limiting factor.
Disease (bacteria), food availability, predators, etc.
300
Which of these organisms would most likely be found at the top of an energy pyramid?
A. clams - a primary consumer
B. sardines - a primary consumer
C. sharks - a secondary consumer
D. kelp - a primary producer
C. sharks- a secondary consumer
300
What trophic level do each organism belong to in an energy pyramid?
A. clams - a primary consumer
B. sardines - a secondary consumer
C. sharks - a tertiary consumer
D. kelp - a primary producer
Clam - 2nd trophic level
Sardines - 3rd trophic level
sharks - 4th trophic level
kelp - 1st trophic level
300
Another name for producers
Autotrophic
300
The highest animal on the food chain
apex predator
300
Herbivores are considered this because they only eat plants
primary consumers
300
When a barnacle attaches itself to a whale's fin (does not affect whale) is ________________
commensalism
300
Identify a possible limiting factor that can cause the mouse population to reach its carrying capacity.
Limiting Factors: predators, habitat, competition for resources
300
Give at least 2 examples of ABIOTIC limiting factors
drought, severe winter, natural disaster, virus-caused diseases, etc.
400
The diagram below shows the cycling of nutrients in an ecosystem.
The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?
Producers
400
Within this food chain, grass→ grasshopper → frog → snake, which organism would we expect to have the lowest population?
Snake
400
The top layer of the energy pyramid
What is apex consumer/ tertiary consumer
400
What is biotic
Living components of an ecosystem
400
many different species living in an area, and gives better stability to the ecosystem
biodiversity
400
Species 1 benefits (+) , Species 2 is harmed (-)
parasitism
400
What is the carrying capacity in this graph?
about 250
400
In a forest ecosystem, which of the following is the best example of a limiting factor for a rabbit population?
a. the robin (bird) population
b. amount of grass/flowers available
c. the amount of sunlight
d. rabbits have no limiting factors
b. amount of grass/flowers available
500
A diagram of a food web is shown below.
Which organism receives the least amount of energy from the producers?
Hawk
500
According to this food web, what organisms would be affected if the Great blue heron were to go extinct?
American alligator and Grass carp
500
This type of organism that gets energy from eating another organism
Heterotroph/Consumer
500
The Nonliving things in an ecosystem are __
abiotic
500
These organisms are NOT able to produce their own food.
Heterotrophs / Consumers
500
Nitrogen fixing bacteria living on the roots of a legume. The bacteria get a shelter and the plants get nitrogen.
mutalism
500
Which of the following might cause the carrying capacity of this rabbit population to DECREASE?
a. increase in food for a few years
b. fewer predators
c. harsh winters for a few years
d. more resources available in the ecosystem
c. harsh winters for a few years
500
Based on this graph, what is the limiting factor for the hare population?
the lynx population
(just like what we saw with the ecological pyramids, there are more primary consumers like the hare than there are top predators like the lynx)