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WorksheetsInvasive Species
Total questions: 13
Worksheet time: 21mins
What is an INVASIVE SPECIES?
a plant or animal that does harm in its non-native environment
a plant that lives in the bottom of the ocean
a plant or animal that lives in its native area
a plant or animal that doesn't eat anything
How do MOST invasive species get to new areas where they don't naturally belong?
humans take them accidentally or on purpose
they ride on the back of sea turtles from one country to another
they get blown by the wind to a new location
they buy a bus ticket and travel there themselves
How do zebra mussels cause harm?
they eat up all the fish in the lake
they don't cause harm
they can clog up pipes and mess up the outside of ships
they poison the fish
If a new, NON-NATIVE species that eats rabbits was introduced into this food chain, what would probably happen?
the population of rabbits would increase
the population of eagles would decrease
the population of eagles would increase
there would be less sunlight
Which statement about invasive species is true?
they can help the food web get better
lots of animals eat them
they get killed off quickly
they reproduce quickly
The "ballast" of a ship holds water. Water is TAKEN IN from the ocean and DRAINED OUT into the ocean as the ship travels. What could be a problem with this?
smaller fish or other organisms could accidently get moved from its home to somewhere it doesn't belong
nothing is a problem with it
it could make the water too hot
it could cause thunderstorms
Which of these is a native species in the desert?
a cow
a monkey
an oak tree
a cactus
What is something that is common to most invasive species?
they don't live long
they can't have babies in the new area
they can't eat anything in the new area
they don't have many predators in their new area
Choose the TWO (2) statements that are correct.
DECREASE means to be more of something
INCREASE means to be more of something
DECREASE means to be less of something
INCREASE means to be less of something
What is a NON-NATIVE species?
a plant or animal that is in its right place
a plant or animal that has been moved to a new place where it doesn't belong
a kind of plant that no animals eat
a kind of plant or animal that doesn't live anywhere
Invasive species can have a major impact on the ecosystem.
TRUE
FALSE
What caused the lionfish to end up in the Atlantic Ocean?
The lionfish swam there from The Pacific Ocean.
Pet owners dumped their unwanted fish into the ocean.
Pet owners lost them and found them in the Atlantic Ocean.
The lionfish migrate there every winter.
