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WorksheetsEcosystem Unit Study Practice
Total questions: 48
Worksheet time: 27mins
Plants need ____ to make food.
light
to stay warm
protection
shelter
Which of these is not a producer?
tree
grass
flower
bird
The place where an organism lives is its_____.
habitat
organism
ecosystem
population
All energy flow an ecosystem begins with....
plants
the sun
the moon
algae
True or False:
Organisms are living things
true
false
What is a producer?
organism that cannot make their own food so they eat other organisms
organism that makes their own food
organism that break down dead organisms
What is a decomposer?
an organism that breaks down dead organisms for energy
an organism that makes its own food
an organism that eats other organisms
Does a food chain start with the sun?
yes
no
What is a consumer?
an organism that breaks down dead organisms
an organism that makes its own energy and food
an organism that eats other organisms for energy
What is a food web?
a model that contains many food chains
a model that contains one food chain
a model that shows where the sun gets its energy
a model that shows how decomposers break down organisms
True or False:
A food web shows how energy flows through an ecosystem
true
false
What is the source of all energy?
water
food
decomposers
sun
What do organisms need to survive?
to have their needs met
a comfortable home
animals to eat
humans
If there is a change in the environment, the organism will either die or have to leave
true or false
true
false
What do the arrows in a food web show?
who is the most powerful
the next organism that uses the energy
the prey
the sun
In a food chain, what comes after a producer?
the sun
a decomposer
a consumer
What is the last thing in a food chain?
a consumer
the sun
a decomposer
a producer
What is the definition of mimicry?
when one organism copies or imitates another organism in order to survive.
the living part of an ecosystem.
a consumer that only eats plants
a pattern that shows how food chains are related
What would happen to the deer population in a forest if the food supply for the deer decreased?
the deer population would increase
the deer population would decrease
the deer population would not change
Which of the following answers best explains the main causes of extinction today?
Wildfires and Habitat Destruction
Overpopulation and development
Tornados and Wildfires
Which of the following is the definition of hibernation?
to move from one place to another in order to survive.
to sleep through the summer in order to survive.
to change what you eat in order to survive
sleep through the winter in order to survive.
Which animal has sharp canine teeth?
deer
cow
beaver
lion
True or False: Animals have different types of teeth depending on what type of consumer they are.
False
True
What are ecosystems?
are communities of living and nonliving things
are communities of only living things
are communities of nonliving things
What is a Community?
one type of species
a group in a parade
multiple types of species living in an specific area
A single living thing
organism
community
ecosystem
population
Organism need each other to live
True
False
What is habitat?
the natural home or environment of an organism
the area in a playground
a neighborhood
a place
Multiple types of species living in a specif area
Community
Population
Individual
The problem of having too many of at least one kind of living thing in an ecosystem is called?
food chain
food web
mimicry
overpopulation
Name this type of behavior: An organism knows how to do something without being taught.
instinct
adaptation
camoflage
mimicry
If the food supply for mice in a field decreases, the most population in that field will probably......
increase
decrease
stay the same
become extinct
A long neck helps the giraffe....
eat grass in a field
eat leaves on trees
cross rivers and streams
protect itself from tigers
Plants make their own food. When used this way, the word "food" means....
usually tastes good
contains stored energy
needs sunlight and carbon dioxide
is eaten only by animals
In an area where many plants and animals live together, mice are very important to foxes. Why is this true?
Mice warn foxes of danger
Foxes eat mice
mice make nests that foxes use
Hawks eat mice instead of foxes
What role have humans played in the extinction of animals?
Humans domesticated animals, which caused extinction.
Humans destroyed habitats, which caused extinction.
Humans avoid animals, leading to their extinction
New forests have been built by humans
What does pollution in steams and lakes usually do to the plants and animals that live there?
helps them grow
creates water
gives them food
kills them
A lizards tail breaks very easily. How does this help protect the lizard?
The lizard can leave a piece of its tail to mark its territory.
During a food shortage, the lizard can break off a piece of its tail and eat it.
The lizard can leave the broken piece of tail to fool predators or attract a mate
If a predator catches the lizard by the tail, the tail breaks off and the lizard gets away.
Ghost crabs live on sandy beaches. Their name infers a protective adaptation due to their...
light color
large pincers
digging ability
ability to outrun predators
Which coloring in animals acts as a warning signal to predators?
green, brown, black
green colors that match the leaves and grass
bright colors such as reds, blues, and oranges
