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Ecology and Biomes
Trophic Levels
Organisms Interactions and Populations
Biogeochemical cycles
Succession and Threats to Biodiversity
100
What is the definition of Ecology?
study of ecosystems
100
What is an Omnivore?
A Heterotroph that eats both plants and animals.
100
Define Mutualism
When both species benefit from the relationship
100
What are the 2 natural processes that affect the carbon cycle?
Photosynthesis and Cellular Respiration
100
Define Succession
Plant communities can replace the existing plant communities over time
200
What are the level of organizations?
Organism- population-community-ecosystem-biome-bioshpere
200
What makes up the first trophic level in the food web?
Producer
200
Whats its called when Organisms try to use the same resource?
Competition
200
What happens in Photosynthesis?
It removes carbon dioxide and releases oxygen
200
whats it called when a species is the first to colonize in an area?
Pioneer species
300
What are the 2 types of biomes?
Terrestrial, and Aquatic
300
What level on the food web has 10% of the energy source?
First-Level consumers
300
What does Carrying Capacity mean?
Largest population that can be supported in an area without harming the environment.
300
Processes like erosion and combustion of fossil fuels are examples of what carbon-oxygen cycle?
Carbon Dioxide Released
300
Name two of the four factors that affect or threaten biodiversity?
Nonnative Species, Agricultural runoff, Atmospheric and climate change, or Habitat Destruction
400
What is the difference between biotic and abiotic factors?
Biotic is living and abiotic is nonliving.
400
What is the role of a Producer?
Uses light energy to power chemical reactions that make carbohydrates from carbon dioxide and water.
400
What are 4 population growth factors?
Birth rate-death rate-immigration- emigration
400
Explain what evaporation is
liquid water is heated until it turns to a gas, water vapor and is released into the atmosphere
400
The climax of a community means...
When the Community is the last plant community when the area has reached equilibrium
500
what area has standing water that supports aquatic plants?
Wetlands
500
What Organism breaks down organic matter?
Decomposer
500
what are some examples of limiting factors?
Disease-space-natural causes
500
What helps convert nitrogen gas into a form of nitrogen that organisms can use?
Nitrogen- fixing bacteria
500
Describe what nonnative species means
Are living outside their normal ecosystem with no predators