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Ecosystem Interactions
Energy Flow in Ecosystems
Round and Round and Round and Round
Changes in Ecosystems
Angry Birds
100
This is many different populations living together in an ecosystem.
What is A COMMUNITY
100
The total mass of all living things in an area
What is BIOMASS
100
Important nutrient which is NOT stored in the atmosphere
What is PHOSPHOROUS
100
Process that makes change possible in living things.
What is NATURAL SELECTION
100
Burning THESE results in the release of tons of Carbon and Nitrogen into the atmosphere each year.
What are FOSSIL FUELS
200
Nitrogen, Carbon, Phosphorus, and other chemicals needed to support life.
What are NUTRIENTS
200
Photosynthetic plants for example
What are PRIMARY PRODUCERS
200
SUNLIGHT + CO2 + H2O --> SUGARS + CO2
What is PHOTOSYNTHESIS
200
Name for a species that is very important to the overall health of the ecosystem
What is a KEYSTONE SPECIES
200
Logging, mining, drilling for oil, fishing, etc..
What is RESOURCE USE
300
One organism benefits, the other is not affected (not hurt, not helped)
What is COMMENSALISM
300
The role of bacteria and fungi
What is DECOMPOSITION or BIODEGREDATION
300
When Nitrogen gas is converted into Ammonium or Nitrate
What is NITROGEN FIXATION
300
One species changes into many different species by filling available niches
What is ADAPTIVE RADIATION
300
When toxic chemicals become more concentrated at each trophic level
What is BIOMAGNIFCATION
400
The specific role that an organism has in an ecosystem
What is NICHE
400
Carnivores exist at this trophic level
What is the 3rd TROPHIC LEVEL
400
Organisms responsible for recycling nutrients into the soil
What are DECOMPOSERS
400
Name for the changes that take place over time in the types of organisms that live in an area
What is ECOLOGICAL SUCCESSION
400
Large-scale human activity which can result in eutrophication from soil leaching and run-off, and soil compaction.
What is AGRICULTURE
500
The wolf hunts and eats a rabbit. This type of relationship is called ______________________.
What is PREDATOR - PREY, or PREDATION
500
What happens to most of the food energy (90%) taken in by consumers.
What is USED IN THE BODY or LOST AS HEAT
500
Type of organism which converts nitrate (NO3) back into Nitrogen gas (N2)
What are DENITRIFYING BACTERIA
500
Occurs as a result of a disturbance to area that already has soil
What is SECONDARY SUCCESSION
500
Negative effects of human activities on an ecosystem almost always result in a decrease in THIS..
What is BIODIVERSITY