Organisms from one trophic level only gets 10% of the energy from the previous trophic level.
What is the 10% Law?
100
Species that are essential to an ecosystem.
What are Keystone Species?
100
Ecological succession that requires no soil.
What is Primary Succession?
100
An example is the Burmese python in Florida.
What is Invasive Species?
200
The process in which plants produce food and gain energy.
What is Photosynthesis?
200
Can eat both plants and animals.
What is Omnivore?
200
Polychlorylbiphenyls. Were banned in 1977 due to the harm it imposed on orcas.
What are PCB's?
200
Ecological Succession occurring after a fire, flood, or drought.
What is Secondary Succession?
200
The squeezing of soil particles together by agricultural farm vehicles and grazing animals.
What is Soil Compaction?
300
Another word for producers such as plants.
What is Autotrophs?
300
Second trophic level, also known as herbivores.
What is Primary Consumers?
300
The storing, transferring, and magnifying of pollutants from one trophic level to the next. Those in the fourth trophic level will obtain a very high level of pollutants.
What is Biomagnification?
300
Lichens, small annual plants, mosses, and grasses.
What is Pioneer Species?
300
In one case habitats are completely lost, in the other case, habitats are only broken up and divided.
What is the difference between Habitat Loss and Habitat Fragmentation?
400
A symbiotic relationship where one species is benefiting over another. It may end in the other species dying.
What is Parasitism?
400
(Not a regular Jeopardy question)
In the food chain below:
grass -> grasshopper -> shrew -> owl
What will happen to the population of grass if owls were removed?
Grass population will increase
400
Lead, Cadmium, and Mercury
What are Heavy Metals?
400
Mature forest
What is Climax Community?
400
This is one effect of Invasive species, for example, European starlings dominate nest sites, and cause decreases in native bird populations.
What is Competition?
500
Use of living organisms such as bacteria to repair contamination. For example, to clean up oil spills in oceans bacteria is used to digest the oil.
What is Bioremediation?
500
Energy doesn't transfer effectively from one trophic level to the next due to this.
What is Energy loss as Heat?
500
Valuable indicators of environmental health because they are sensitive to chemical changes.
What are Amphibians?
500
(Not a regular Jeopardy question)
What is the time difference between Primary and Secondary Succession?
Primary - hundreds of years
Secondary - 100-150 years
500
This is an effect of invasive species. For example, Wild boars are considered one of the world's worst invasive species. Their behaviour spread weeds and change succession and land composition.