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Food Web and Chain
Competition
Symbiosis
Succession
Population Growth
100
food chains is when energy is transferred by eating and being eaten when webs are feed interactions
What is the differences between food chains and food webs ?
100
Same Place , Same Time , Same Resources
What 3 things are needed in order to have competition?
100
biologists recognize three main classes of symbiotic relationships in nature:mutualism,parasitism, and commensalism.
What are the three primary ways that organisms depend on each other?
100
they change over time, especially after disturbances as there is immigration and emigration
How do communities change over time?
100
because predators and prey balance eachother out and organisms
why isn't exponential growth realistic?
200
because decomposers convert the dead material to detritus which is eaten by detritivores
why are decomposers and detritivores in the food webs one of the most important?
200
by causing species to divide resources
how does competition shape communities ?
200
any relationship in which two species live closely together.
What does symbiosis mean ?
200
secondary succession in healthy ecosystems following natural disturbances often reproducers the original climax community.
Do ecosystems return to normal following a disturbance
200
birth rate, death rate and rate at which individuals enter or leave the population
What factors affect population growth?
300
energy flows through an ecosystem in a one - way stream from primary producers to various consumers
how does energy flow through ecosystems ?
300
food,space,shelter and mates
what might animals start competition for ?
300
-ticks feeding on a dog.
What is parasitic relationship?
300
Primary and secondary
what are different types of succession?
300
under ideal conditions with unlimited resources, a population will grow exponentially
What happens during exponential growth ?
400
because decomposers break down dead and decaying matter and releases nutrients that can be reused
how are decomposers like a city's recycling center
400
competitive exclusion principle
what is it called when no two species can occupy exactly the same niche in the exactly the same habitat at the exactly the same time
400
-commensalism
What is a symbiotic relationship where one parnter benefits and the other does no benefit or lose from the relationship?
400
to rebuild an ecosystem or community
why does succession occur ?
400
occurs when a population's growth slows and then stops, following a period of exponential growth
What is logistic growth
500
Mutualism
What is the symbiotic relationship where both partners benefits?
500
primary succession occurs in an area with no trace of previous community , secondary occurs in an partially olesorted area
what is the difference between primary and secondary succession?
500
study populations geographic range , density and distribution, growth rate , and age structure
How do ecologists study populations?