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Changes in Ecosystems Review
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How do animals use camouflage to survive?
 
by blending in with their environments
 
by standing out fro their environments
 
by giving warning calls
 
by imitating other animals
How do a porcupine's quills help it survive?
 
The quills protect the porcupine from predators
 
The quills keep the porcupine warm
 
The quills help the porcupine catch food
 
The quills allow the porcupine to get oxygen
What adaptation will help this cactus survive in the desert ecosystem?
 
a waxy stem
 
large leaves
 
small flowers
 
a waxy stem
Most producers get their energy from
 
sunlight
 
consumers
 
predators
 
rocks
Why do some animals migrate?
 
to avoid cold weather
 
to escape prey
 
to find their families
 
to make a change
People can do all of the following to help the environment except
 
pollute
 
reduce
 
reuse
 
recycle
All of these are natural disasters except
 
mold
 
wildfires
 
floods
 
droughts
All fossils
 
are the remains of living things
 
are living things
 
are found in cold places
 
were created millions of years ago
Predators are animals that
 
hunt other animals for food
 
are hunted by other animals for food
 
are plant eaters
 
exist only as fossils
What could cause an organism to become extinct?
 
loss of habitat
 
loss of predators
 
increase in habitat size
 
increase in resources
Which word describes fossils found in deeper layers of rock?
 
older
 
smaller
 
younger
 
larger
Which living thing would compete with this deer for food?
 
other deer
 
bats
 
owls
 
plants
How can a flood change and environment?
 
It can wash away plants and soil
 
It can cause plants to grow quickly
 
It can dry out rivers and lakes
 
It can cause wildfires
What causes droughts
 
no rain for a long time
 
wildfires
 
heavy rains and other storms
 
diseases
What can help scientists learn more about an animal that lived in the past
 
fossils
 
drawings
 
minerals
 
rocks
If this fossil was found at Duryu Park it would infer that.....
 
Duryu Park was once under water
 
This fossil was lost by someone
 
Fossils are difficult to find
 
fossils of fish are different from fish that live today
What could happen if prairie dogs were removed from a grassland ecosystem?
 
mice would have more habitats
 
coyotes would have more food
 
eagles would have more food
 
grasses would become extinct
Which could you compare to learn more about living things of the past?
 
elephant and woolly mammoth
 
wolf and tiger
 
hummingbirds and eagle
 
frog and lizard
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