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WorksheetsEcosystems Review
Total questions: 20
Worksheet time: 40mins
Use the following data table to answer this question.
Which of the following ecosystems is best described by the abiotic factors presented in the data table?
Desert
Forest
Grasslands
Wetlands
A student described a wetland ecosystem in the chart below.
What type of ecosystem was the student most likely describing?
marsh
swamp
forest
estuary
6. A scientist was studying an area in South Carolina. He recorded the average temperature and rainfall of the area. He found that the soil in the area was very wet. He recorded that the area contained alligators, beavers, cypress trees, Spanish moss, snakes and frogs.
What was he most likely describing with all this data?
a swamp community
a swamp ecosystem
a desert community
a desert ecosystem
Which of the following communities is best adapted to survive in a grassland ecosystem?
bats, cacti, coyotes, hawks, owls, rattlesnakes, spiny lizards
bison, coyotes, deer, hawks, mice, rabbits, shrubs
alligators, crawfish, cypress trees, ducks, frogs, mosquitoes, water snakes
beaver, black bear, cardinals, deer, pine trees, shrubs, squirrels
Ticks are animals that attach themselves to mammals and birds. They get the energy they need to live by sucking blood from the animals to which they are attached.
Which of the following best explains the role that ticks play in the ecosystem?
They are host animals because they serve other animals.
They are producers because they produce baby ticks.
They are parasites because they live on a live host animal.
They are prey animals because they attach to predators.
Fleas are small, flightless insects. They have very strong legs and can jump great distances. They live most of their lives on mammals and birds, consuming the blood of their hosts. Fleas can carry a variety of diseases that they can pass to their hosts by directly infecting the blood of the host animal during feeding.
What is the best explanation for why the flea is classified as a parasite?
The flea spends most of its life living on a host mammal or bird.
Both the flea and the host benefit from the presence of the flea.
Fleas are small, flightless insects and can jump from host to host.
Fleas consume the host’s blood and can transmit diseases to the host.
A population of grasshoppers lived in a large grassy area. Frogs fed on the grasshoppers in the area. During a hot dry summer, much of the grass died.
Which of the claims below is best supported by the evidence?
The number of frogs would decrease because the number of grasshoppers would decrease.
The number of grasshoppers would increase because the number of frogs would decrease.
The number of grasshoppers would decrease because the number of frogs would increase.
The number of frogs would increase because the number of grasshoppers would increase.
The graph below shows an abiotic factor in different ecosystems.
Which of the following claims can be argued best from the data?
Grasslands need less water than forests.
Rainforests need less water than deciduous forests.
Grasslands need less water than deserts.
Forests need less water than grasslands.
This is a picture of an ecosystem.
What type of community would we most likely expect in this ecosystem?
alligators, crawfish, cypress trees, ducks, frogs, mosquitoes, water snakes
bats, cacti, coyotes, rattlesnakes, spiny lizards, jack rabbits
bison, coyotes, deer, hawks, mice, rabbits, shrubs, prairie dogs
beaver, black bear, cardinals, deer, pine trees, shrubs, squirrel
Use the following information to answer this question.
Sponge mushrooms are found on the ground where there is an abundance of dead plant matter. Like all forest fungi, sponge mushrooms break down decaying plant matter, recycling important nutrients back into the forest floor.
Based on how it obtains its energy, the sponge mushroom would be classified as a
consumer
decomposer
host.
producer.
Southern live oaks are commonly found in the Southeastern United States, mainly along the coastal plains. They have thick bark, shiny green leaves, and produce acorns. The southern live oak is something of an iconic image of the South, with thick drapings of the Spanish Moss plant growing on its branches. These trees can grow to 60+ feet tall, with branches stretching out over 80 feet.
Based on the description above, the southern live oak would best be classified as a
herbivore.
host
parasite
predator
A population of rabbits lived in a grassland ecosystem. Several changes occurred to the organisms in the community. The graph below shows changes in the rabbit population over time.
Which possible change in the community could be best argued from the data in the graph?
The increase in the rabbit population might have been caused by a decrease in grass
The increase in the rabbit population might have been caused by a decrease in predators.
The decrease in the rabbit population might have been caused by an increase in grass
The decrease in the rabbit population might have been caused by an increase in predators.
Use the following food web model to answer this question.
In what way might a decrease in the fish population most likely impact this ecosystem?
The seagull population will decrease.
The zooplankton population will go extinct.
The leopard seal population will increase.
The seagull population will now get its energy from krill.
Below is a food web for a grassland ecosystem. A wet summer caused more grass to grow.
Which of the claims below best explains the effect of the increase in grass on the fox population?
The number of prey animals would decrease which would decrease the predator population.
The number of prey animals would increase which would decrease the predator population.
The number of prey animals would increase which would increase the predator population.
The number of prey animals would decrease which would increase the predator population.
Here is a food web model.
Which of the following shows one of the ways energy can flow according to this model?
Sun → Plants → Mouse → Decomposers
Plants → Hawk → Snake → Decomposers
Decomposers → Sun → Plants → Mouse
Snake → Hawk → Decomposers → Plants
Use the following food web model to answer the question.
What would most likely happen to the community represented by this food web model if Large Piscivorous Fish were to die out in the Chesapeake Bay habitat?
Bald Eagle numbers would increase.
Osprey would no longer have a food source and might go extinct.
Wading Birds would become the chief food source for the Bald Eagle.
Gulls and Terns and Wading Birds would eat less Small Planktivorous Fish.
The diagram below shows what happens to the sun’s energy in an ecosystem. Plants make food using the sun’s energy. Each level represented in the pyramid uses some of that energy until most of the original energy is lost to heat.
According to the diagram, which level of organism will have the least total energy?
producer
carnivore
herbivore
top predator
The diagram shown is a food web.
Which organisms in the food web are omnivores?
rabbits
snakes
mice
grasshoppers
Use the following food web model to answer the question.
What would most likely happen to the community represented by this food web model if Large Piscivorous Fish were to die out in the Chesapeake Bay habitat?
Bald Eagle numbers would increase.
Osprey would no longer have a food source and might go extinct.
Wading Birds would become the chief food source for the Bald Eagle.
Gulls and Terns and Wading Birds would eat less Small Planktivorous Fish.
Use the following information to answer this question.
Which data best describes the abiotic factors in an estuary ecosystem?
