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Natural Science 5 Unit 3 Review
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Can you name the 3Rs rule? clue: ts the best way to help the environment and improve our quality of life.
reduce, reuse, recycle
How do producers make food?
photosynthesis
What is the difference between an endangered specie and an extinct animal?
......
The Philippine eagle is an endangered species living only in limited areas of Spain. (True or False)
False
The Iberian Lynx is the most endangered cat species in the word. (True or False)
True
MonfragĂĽe National Park has extensive marshes and sand dunes. (True or False)
False
Invasive species change the balance in an ecosystem. (True or False)
True
Food chains and food webs are the same. (True or False)
False
Name 2 things you can do to preserve biodiversity
take shorter showers, recycle, respect local habitats, etc
Name five of the world's biggest environmental threats we face today?
Global warming, pollution, deforestation, invasive species, overpopulation.
A food chain always ends with a a host. (True or False)
False
A food chain always ends with a a host. (True or False)
False
The greenhouse effect reduces global temperatures. (True or False)
True
What is a food chain?
It represents the different levels of feeding relationships within an ecosystem.
What is a food web? explain.
All connected food chains make up a food web.
Name the 3 types of consumers
primary, secondary, tertiary
Most living things are part of more than one food chain. (True or False)
True
This describeswhen one organism benefits while the other one is not harmed or benefited.
commensalism
This describes animals that are at risk of extinction
endangered species
These living things make their own food.
producers
this occurs when trees in forests are cut down
deforestation
These organisms live on the remains of other organisms
parasites
This word describes a species that no longer exists.
extinct
All animals are consumers because they cannot make their own food. (True or False)
True
Look at the picture and decide whether the animals are cooperating or competing
cooperating
Look at the picture and decide whether the animals are cooperating or competing
competing
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