Populations
Changing Populations
Communities
Vocabulary
Food Web
100
all the populations of different species living together in one area
What is community?
100
number of offspring born over a given time
What is birthrate?
100
the source of all of the energy in a food web
What is the sun?
100
organisms that get energy from eating other organisms
What are consumers?
100
humans, many birds
What is omnivore?
200
largest number of individuals of one species a population can support
What is carrying capacity?
200
Monarch butterflies moving from one place to another based on instinct is called __________________.
What is migration?
200
organisms that get energy from the environment
What are producers?
200
place within an ecosystem where an organism lives
What is habitat?
200
wolf, tiger
What is carnivore?
300
fleas on dogs are examples of this
What is parasitism?
300
Sea otters are at risk, but not yet endangered. This is called_________________.
What is threatened?
300
close, long term relationship between species that involves an exchange of food or energy
What is symbiosis?
300
the parts of earth and the surrounding atmosphere where there is life
What is the biosphere?
300
coconut tree, grass
What is producer?
400
not enough sunlight, temperature, natural disasters, and disease are all examples of these
What are limiting factors?
400
mountain gorillas are at risk of their species dying out. This is called__________________.
What is endangered?
400
In this relationship, one organism is benefiting while the other is not benefiting nor being harmed
What is commensalism?
400
demand for resources
What is competition?
400
eats producers
What is an herbivore?
500
all of the meerkats living in a refuge is an example of this
What is population?
500
If the _______________ is higher than the ______________, the population increases
What is birthrate, death rate?
500
butterflies feeding on nectar, sloths eating leaves, ants eating insects or plants are all examples of this
What is a niche?
500
the size of a species compared to the amount of space available
What is population density?
500
earthworm, bacteria
What is a decomposer or detritivore?
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