Ecosystems 1
a non-living factor
What is abiotic?
A living factor
What is biotic?
A place where an organism lives; its "address"
What is a habitat?
All energy in food webs comes from this
What is the sun?
An organism's functional role within its ecosystem; its "job"
What is a niche?
The carbon and nitrogen cycles are examples of these
What are nutrient (or biogeochemical) cycles?
An animal that eats plants or other animals and does not make its own food.
What is a consumer?
An organism that uses sunlight to create its food
What is a producer
A group of the same species living in the same place at the same time
What is a population?
3 examples of biotic factors
Plants, animals, fungi, bacteria
The arrows in a food chain and food web represent this
What is the flow of energy?
The primary source of carbon that enters the carbon cycle
What is carbon dioxide?
A group of populations of organisms interacting with each other in a common habitat
What is a community?
Temperature, water, soil, light, and rocks
the flow of energy from a producer to one or more consumers. (ie: linked together by their feeding relationships)
What is a food chain?
In a food web, this is the role of fungi and bacteria
What are decomposers?
The trapping of Earth's warmth in the atmosphere
What is the greenhouse effect?
Competing over resources between different species
What is interspecific competition?
The term for animals that feed on dead and decaying organisms
What are detritivores?
living and nonliving things are parts that make this.
What are ecosystems?
An animal that just eats plants
What is a herbivore?
These are 3 limiting factors for a population
What are food, water, space
The process by which N2 from the air is reduced to NH4+ in the soil (and made available to plants)
What is nitrogen fixation?
Competing over resources within the same species
What is intraspecific competition?
An adaptation that helps an animal blend in with its surroundings
What is camouflage?
The number of individuals of a species an ecosystem can support
What is the carrying capacity?
A community and the physical environment it interacts with (biotic and abiotic factors)
What is an ecosystem?
This is when energy or matter flows from one storage to another without changing state
What is a transfer?
Makes up 78% of the of the Earth's atmosphere
What is nitrogen?
A relationship when both benefit each other.
What is mutualism?
A mosquito sucking blood from a person is this type of relationship
What is parasitic (or parasitism)?
An animal that eats meat & plants
What is an omnivore?
A model that shows energy loss between trophic levels in a food chain
What is an ecological (or productivity) pyramid?
sun + CO2 + H2O --> sugar + O2
What is photosynthesis?
This is calculated as gross primary productivity - respiration
What is net primary productivity?
Conditions of the environment that limit the growth of a species
What are limiting factors?
when neither organism benefits or is harmed this is called
commensalism
This is the increase in concentration of a pollutant going up trophic levels
What is biomagnification?
Breaking down food (sugars) to release energy for living processes; opposite of photosynthesis
What is (cellular) respiration?
The position an organism occupies in a food chain or food web
What is trophic level?
One of the steps in the nitrogen cycle
Nitrogen Fixation
Assimilation
Ammonification
Nitrification
Denitrification