1
2
3
4
5
100
A substance that living things need to survive
nutrient
100
an object or condition required for survival
need
100
the role of an organism in a habotat
niche
100
The illegal killing or removal of organisms from their ecosystem is known as
poaching
100
A species that is not native to its habitat
foreign species
200
an organism's needs are met by these type of resources
living and non-living
200
a close relationship in which two or more organisms from different species live together
symbiosis
200
the state in which all influences cancel one another out, resulting in no overall change
balance
200
A process in which nutrients and other resources are repeatedly transferred throughout an ecosystem
pollution
200
TRUE or FALSE By law, factories are seldom required to reduce the amount of pollution they release into the air
False
300
a species in its natural habitat
native species
300
a system of several overlapping food chains
food web
300
the protection and restoration of species and natural resources in an ecosystem
conservation
300
The movement of energy within an ecosystem
energy flow
300
TRUE or FALSE Wildlife refuges are safe places for endangered species to live
True
400
a supply of something useful for survival
resource
400
an organism that has a parasite living in or on it
host
400
A method of increasing the population of an endangered species through human intervention is known as
captive breeding
400
The coloring or patterns that allow species to blend in with its habitat
camougflage
400
TRUE or FALSE Many companies that log forests are now planting new trees to replace the ones they cut down
True
500
a relationship in which two or more organisms struggle for the same source
competition
500
the resemblance of one species to another
mimicry
500
the removal of most or all trees from a forest
deforestation
500
A behavior that protects a species from harm
defense
500
TRUE or FALSE Native species are never harmed from the introduction of a foreign species into their habitat
False
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