Download Ecology Test Review

Name _______________________
Date ____________________
Ecology Test Review
Define the following terms:
Biotic factors:
Abiotic factors:
Herbivore:
Omnivore:
Carnivore:
Decomposer:
List some abiotic factors:
List some biotic factors:
What do bacteria most likely function as in a food web? __________________________
Energy used by producers in a food web is
provided by ___________________________.
Label the trophic levels with the following:
Producer, primary, secondary, tertiary, top
consumer
Which level will have the most amount of energy?
Which level will have the least amount of energy?
Which level will have the most amount of
biomass?
Which level will have the least amount of biomass?
How much energy is passed to each trophic level?
What happens to the rest of the energy not passed on to the next trophic level?
Period _____
What percentage of energy will the producers pass on to the secondary consumers?
Between which 2 levels is the greatest amount of energy transferred? ______ and ______
Between which 2 levels is the least amount of energy transferred? ______ and ______
Use the food web to the right to answer the following questions.
What do the arrows represent?
How can you reduce the number of Puffin in the ecosystem?
Which organism is an herbivore?
omnivore?
carnivore?
What is the role of the snake in the food chain?
What is the role of the fungi?
Refer to the picture on the right. Approximately how much
of the energy available in the tissues of the producer is
eventually incorporated into the tissues of the secondary consumer?
The lynx and hare both live in the Arctic. The hare eat plants and the lynx eat the hare. What is one factor
that would determine how many lynx live in the Arctic?
Define the following terms:
Mutualism:
Commensalism:
Parasitism:
Predation:
Decide whether each of the following is an example of mutualism, parasitism, commensalism, or
predation.
Upon digging up a clover plant, a student observed an average of 8 nodules on the roots of each clover
plant. Nodules contain bacteria which have the ability to convert atmospheric nitrogen into nitrates and
release them into the soil. Plants utilize nitrates to manufacture proteins. The plant in return provides
energy to the bacteria.
What ecological relationship exists between the bacteria and the clover plant? ______________________
Small green aphids were sucking the juices from clover stems. Further investigation found some aphids
being eaten by an army of ants.
What type of ecological relationship exists between the aphids and the clover? ______________________
What type of ecological relationship exists between the ants and the aphids? ________________________
A squirrel has lice.
What ecological relationship exists between the lice and the squirrels? _____________________________
A colony of Leaf Cutters bees was feeding on the nectar and pollinating flowers.
What ecological relationship exists between the flowers and the bees? _____________________________
A bee keeper was setting out a hive of honey bees.
What ecological relationship exists between the bee keeper and the bees? __________________________
Several butterflies and moths were flitting over the field. Some could be observed landing on flowers,
others were landing on leaf axils, and the students thought they were laying eggs.
What ecological relationship exists between the butterflies and the leaves? _________________________
Nearby, a Red Fox was dozing in the sun, contented after his recent kill, a Jack Rabbit. Several Blue Burr
seeds were stuck in his coat.
What ecological relationship exists between the fox and the rabbit? _______________________________
What is the relationship between the seeds and the fox? _______________________________
As energy is passed up a food chain, chemical pollutants increase / decrease. (Circle answer.)
What are the main stages of the water cycle?
Draw a basic water cycle in the box on the right.