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WorksheetsEcosystems Unit Test Review
Total questions: 25
Worksheet time: 25mins
Which best describes an ecosystem?
a system where population stay the same
anywhere there is only one kind of organism
a system where living and nonliving things interact
a place where there is always rain, soil, sunlight, and air
Which ecosystems is best described by the abiotic factors shown in the data table below?
desert
grassland
pond
tropical forest
All of the following are characteristics of ponds and lakes EXCEPT
They are large bodies of salt water divided by continents
Plants and algae usually grow along the edges
They are bodies of freshwater surrounded by land
Some examples of animals include ducks, turtles, or beavers
Which of the following is an abiotic factor for the pond ecosystem shown below?
water lily
algae
fish
sunlight
What type of ecosystem is shown in the picture below?
grassland
wetland
lake
ocean
What would be considered a biotic factor for a frog's habitat?
the algae where the frog lays its eggs
the water in which the frog lives
the rocks on which the frog suns itself
Which of the following describes a population?
all of the sunfish, bass, and catfish living in a lake
all of the mice living in a barn
a squirrel eating acorns
a log providing shelter for beetles, spiders, and snakes
The pond ecosystem show below includes a number of different types of birds, mammals,reptiles, and fish. All of these make up the ecosystem’s ___________.
abiotic factors
population
community
microorganisms
Which level would describe the space labeled W in the diagram below?
Biome
Habitat
Organism
Population
A prairie provides resources needed to support which organism?
black bears
grass
sea gulls
oak trees
The organisms in the diagram below are found in many different ecosystems and play an important role. How are these organisms classified?
carnivores
herbivores
decomposers
producers
Consider the food web shown below. Check ALL the organisms listed that are producers.
Bacteria
Bears
Blueberries
Chipmucks
Grass
In the food web shown below, which organism is an herbivore?
bacteria
grass
chipmucks
bears
Young Eastern Painted turtles eat both small animals and plants. How are these turtles best classified?
carnivores
producers
herbivores
omnivores
Which of these things are passed along in a food chain?
herbivores and decomposers
energy and matter
air and sunshine
ecosystems and communities
Which animal best completes the food chain shown below?
rabbit
tiger
bear
fish
Which choice shows the correct order for the transfer of energy among organisms in a food web?
decomposer → consumer → producer
producer → decomposer → consumer
producer → consumer → decomposer
consumer → decomposer → producer
Which food chain shows one of the ways energy flows in the ecosystem shown below?
owl → spider → snail → green plant
wood mouse → spider → grasshopper → green plant
green plant → wood mouse → spider → shrew
green plant → beetle → shrew → owl
Use the food chain below to determine which statement about the food chain is true.
The grasshopper is the predator of the frog.
The snake is a prey for the frog.
The hawk is the prey to the snake.
The snake is prey to the hawk.
The relationship between hawks and rabbits can be described as predator and prey because _________.
Rabbits are herbivores and hawks are carnivores.
Rabbits and hawks are both consumers.
Hawks hunt rabbits as a food source.
Rabbits eat plants that get nutrients from the decomposing remains of hawks.
Ticks often feed on the blood of deer, birds, and other organisms. If too many ticks feed on an animal or if the tick infects the animal with a disease, the animal can become weak and die. What is the BEST explanation for why a tick is classified as a parasite?
The tick spends most of its life living on a host.
Both the tick and the host benefit from the presence of the tick.
Ticks are able to move from host to host.
Ticks consume the host’s blood and can transmit disease to the host.
What is the best explanation for a decrease in a population of wolves in an area?
the amount of food decreases
the amount of space increases
the amount of competition decreases
One year there is a drought and very little rain falls in a forest ecosystem. What is the MOST LIKELY result on the ecosystem?
More deer and rabbit will migrate into the area.
Water will become a limiting factor for all organisms.
The population of rabbits and birds will increase.
The organisms will adapt to survive with less water.
Different types of birds within an environment may feed on different types of organisms. What is a benefit of this type of interaction?
It allows different birds to build better nests.
It reduces competition between different birds.
It causes different birds to reproduce more often.
It allows different birds to escape from predators.
The graph below shows how the plant population in a forest changed over 35 years. How might other organisms have been affected in this forest ecosystems during the same time period?
The animals that eat the plants will decrease.
The animals that eat the plants will increase.
The animals that eat the plants will stay the same.
It cannot be predicted.
