The main way individuals join a population is by _______.
The main way individuals leave a population is by _______.
birth and death
100
Every organism in an ecosystem fill the energy role as a ______, _______, ______.
producer, consumer, decomposer.
100
What are the 3 types of interactions among organisms?
competition, predation, and symbiosis.
100
Which 2 cycles are linked?
The carbon cycle and oxygen cycle
200
What must an organism obtain in order to survive and reproduce?
They must obtain food,water, shelter, and other things in order to survive.
200
Immigration means _______ into a population.
Emigration means ________ a population.
moving
leaving
200
A producer is an organism which makes its own _____.
A ________ is an organism which obtains its own energy by feeding on other organisms.
A _________ breaks down the wastes of dead organisms and returns the raw materials to the ecosystem.
food
consumer
decomposer
200
_________ is the struggle between organisms to survive as they attempt to use the same limited source.
competition
200
True or False:
Humans can also impact the amount of carbon and oxygen in the air.
True
300
An organism interacts with both the _____ and _______ parts of its habitat.
living and nonliving
300
The largest population that an area can support is called the _________ __________.
carrying capacity
300
A _____ ______ is a series of events in which one organism eats another and obtains energy.
food chain
300
An interaction in which one organism kills another for food is called _________.
predation
300
_________ succession is the series of changes that occur in an area where no soil or organisms exist.
primary
400
_________ factors are the living parts of a habitat.
_________ factors are the nonliving parts of a habitat.
Biotic
Abiotic
400
What is a limiting factor?
A limiting factor is an environmental factor which causes a population to stop growing.
400
A _____ ___ consists of the many overlapping food chains in an ecosystem.
food web
400
What is symbiosis and how many types of symbiosis are there?
Symbiosis is a close relationship between to species that benefit at least one of the species. There are 3 types of symbiosis: mutualism, commensalism, and parasitism.
400
The series of predictable changes that occur in a community over time is called ___________.
sucession
500
_______ is the study of how living things interact with each other and their environment.
Ecology
500
Name 6 examples of limiting factors
Food, water, space, light, soil composition, and weather conditions are examples of limiting factors.
500
An ______ ________ shows the amount of energy that moves from one feeding level to another in a food web.
energy pyramid
500
________ is a relationship in which both species benefit.
A relationship where one species benefits and the other is neither helped nor harmed.
__________ involves one organism living on or inside another organism and harming it.
mutualism
commensalism
parasitism
500
__________ __________ is the series of changes that occur in an area where the ecosystem has been disturbed , but where soil and organisms still exist.