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Unit ·3 Natural Science - Review
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They obtain their food by feeding on other living organisms.
Consumers
This word describes animals that are at risk of extinction.
Endangered
These living things make their own food.
Producers
It is considered a paradise for bird watchers.
Monfrague National Park
It is a refuge for endangered species such as Iberian lynx. It has a biodiversity that is unique in Europe.
Doñana National Park
It is considered the rarest bird of prey in the world.
Iberian imperial eagle
It is the most endangered cat species.
Iberian Lynx
It is the word we use to describe endangered species.
Extinct
This results in a rapid growth in the exploitation of natural resources.
Overpopulation
They are introduced accidentally or intentionally and change the balance in an ecosystem.
Invasive species
This results in habitat loss.
Deforestation
It is where toxic pollutants contaminate soil and water.
Pollution
It is where the greenhouse effect raises world temperatures resulting in the loss of ecosystems.
Global warming
It occurs when every single member of a species dies out and none are left alive.
Extinction
The connected food chains make up a ___.
Food web
It is where one organism benefits while the other one is not harmed or benefited.
Commensalism.
It is where one organism benefits while it harms the other organism.
Parasitism
It is where a strong animal, captures and eats an animal of a different species.
Predation
They live on the remains of other living things.
Decomposers
They feed on secondary consumers.
Tertiary consumers
Carnivores and omnivores are ___. Animals such as toads and foxes eat primary consumers.
Secondary consumers
Herbivores and omnivores, such as rabbits and grasshoppers, are ___.
Primary consumers
It represents the different levels of feeding relationships within an ecosystem.
Food chain
The energy in an ecosystem can be represented through ___ and ___ .
food chains and food webs