Symbiosis
Ecological Relationships
Food Webs
Limiting Factors
Energy Flow in Ecosystems
100
What we call the organism the the parasite lives off of.
What is the host?
100
What do call the organism that is hunted by the predator?
What is prey?
100
The organisms that recycle nutrients (from dead organisms) back into the soil.
What are decomposers?
100
Water is what type of limiting factor? (biotic or abiotic)
What is abiotic?
100
Represents the flow of energy from one organism to another.
What is an arrow?
200
When both organisms benefit from the relationship.
What is mutualism?
200
The relationship where one organism kills and eats another.
What is predation?
200
These organisms use sunlight to make food.
What are producers?
200
Disease is an example of what type of limiting factor? (abiotic or biotic)
What is biotic?
200
The direction the arrows point in the food web.
What is it points to the organism who ate the other organism?
300
When one organism benefits and the other is harmed.
What is parasitism?
300
Both zebras and wildebeast eat the same food. This will lead to ________ between the two species.
What is competition?
300
This is the top predator in an ecosystem.
What is an apex predator?
300
Limiting factors that effect all populations regardless of thier size.
What are density independent limiting factor?
300
The level within the food web that contains the highest amount of available energy.
What are producers?
400
When one organism benefits and the other does not benefit but also is not harmed.
What is commensalism?
400
A lion hunting a zebra is an example of this type of relationship.
What is predation?
400
This level consumer eats producers only.
What is a primary consumer?
400
What is a limiting factor that could affect a bird population in an ecosystem?
A. The amount of available nesting sites
B. The color of their feathers
C. The temperature of the ocean
D. The types of plants in the Arctic
What is the amount of available nesting sites?
400
How energy flows through a food web.
What is from producers to consumers to decomposers?
500
A bird building a nest in a tree is an example of this symbiotic relationship.
What is commensalism?
500
Pilot fish are carnivorous fish that grow to be anywhere between 1-2 feet long. These fish follow larger marine animals like sharks, sea turtles, and rays and eat parasites and left-over food. These large marine animals do not eat the pilot fish and can accumulate several pilot fish that clean the animal and prevent parasitic infestations.
Populations of all large marine animals are on the decline due to human activity. Which of these will most likely result if the large marine animal populations continue to decline.
A. The pilot fish will find other large marine animals to follow to find food.
B. The population of pilot fish will increase because they will have fewer competitors in the ocean.
C. The pilot fish population will remain the same and adapt to eat other food sources.
D. The population of pilot fish will also decline because they will lose their food source.
What is the population of pilot fish will also decline because they will lose their food source.?
500
This level consumer can be an omnivore or a carnivore and eats primary consumers (and possibly producers too).
What is a secondary consumer?
500
Manatees are large aquatic mammals found in Florida waters. Below are some characteristics of manatees.
- They feed on underwater plants in shallow areas.
- They prefer slow-moving rivers, canals, and springs.
- They require warm water to survive winter.
- Boat traffic can injure or displace them.
Which limiting factor would most directly reduce the manatee population?
A. Increase in winter temperaturesIncrease in winter temperatures
B. Decrease in predator populationsDecrease in predator populations
C. Reduction in shallow, slow-moving waterwaysReduction in shallow, slow-moving waterways
D. Increase in plant growth
What is reduction in shallow, slow-moving waterways?
500
In a freshwater lake, industrial waste causes a massive die-off of the shiner population. What is the most immediate effect on the food web? 
What is a decrease in black crappies and an increase in water fleas?