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The energy in an ecosystem can be represented through ___ and ___ .
food chains and food webs
It represents the different levels of feeding relationships within an ecosystem.
Food chain
Herbivores and omnivores, such as rabbits and grasshoppers, are ___.
Primary consumers
Carnivores and omnivores are ___. Animals such as toads and foxes eat primary consumers.
Secondary consumers
They feed on secondary consumers.
Tertiary consumers
They live on the remains of other living things.
Decomposers
It is where a strong animal, captures and eats an animal of a different species.
Predation
It is where one organism benefits while it harms the other organism.
Parasitism
It is where one organism benefits while the other one is not harmed or benefited.
Commensalism.
The connected food chains make up a ___.
Food web
It occurs when every single member of a species dies out and none are left alive.
Extinction
It is where the greenhouse effect raises world temperatures resulting in the loss of ecosystems.
Global warming
It is where toxic pollutants contaminate soil and water.
Pollution
This results in habitat loss.
Deforestation
They are introduced accidentally or intentionally and change the balance in an ecosystem.
Invasive species
This results in a rapid growth in the exploitation of natural resources.
Overpopulation
