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WorksheetsEcology Review
Total questions: 40
Worksheet time: 20mins
Name
Class
Date
1.
The Arctic Dodo bird is a flightless bird found on the island continent of Antarctica. It burrows in the snow and lays eggs throughout the year. There are currently no native species of carnivorous rabbits on Antarctica, so the Arctic Dodo has had no real experience with predators until the carnivorous rabbits were maliciously introduced sometime last year. These rabbits, which eat a wide variety of animal species, held true to their name and quickly established a large population on Antarctica. How was the Arctic Dodo most likely affected by the introduction of the carnivorous rabbit?
a)
The carnivorous rabbit ate only species that lived in trees, so it had no effect on the Arctic Dodo
b)
The Arctic Dodo quickly developed the ability to fly in order to escape from the carnivorous rabbits
c)
The population of Arctic Dodo declined, and the species nearly became extinct
d)
The Arctic Dodo began to build its nests on icebergs
2.
Who are the predators of bats?
a)
moths
b)
owls and snakes
c)
cave spiders
d)
beetles, millipedes, and springtails
3.
What preys on birds?
a)
grains
b)
owls
c)
grasshoppers
d)
foxes
4.
What does the mountain lion compete with?
a)
The mountain lion competes with the hawk for the rabbit
b)
The mountain lion competes with the deer for the rabbit
c)
The mountain lion competes with the snake for the mouse
d)
The mountain lion competes with the hawk for the snake
5.
What do leopard seals eat?
a)
krill, herring, anchovies, and squids
b)
killer whales
c)
emperor penguins, weddell seals, ross seals, crabeater seals, and adelia penguins
d)
antarctic petrels and adelie penguins
6.
Name a producer/consumer relationship.
a)
clovers and meadow voles
b)
clovers and blackberries
c)
eastern cottontails and red-tailed hawks
d)
garter snakes and caterpillars
7.
Name a predator/prey relationship.
a)
rabbit and cricket
b)
snake and frog
c)
rabbit and mouse
d)
frog and cricket
8.
How many animals in the food web are omnivores?
a)
five animals are omnivores
b)
only raccoons are omnivores
c)
nine animals are omnivores
d)
there are no omnivores in the food web
9.
What do the arrows in the food web represent?
a)
the flow of energy within the food web
b)
what organism eats what
c)
the number of calories that are consumed
d)
a measure of the kinetic energy used
10.
The graph shows the temperature ranges of four species of hairless cats. At which temperature range will there be the most competition for space among these cats?
a)
10 oC - 15 oC
b)
20 oC - 25 oC
c)
30 oC - 35 oC
d)
15 oC - 20 oC
11.
How does biodiversity affect the stability of an ecosystem?
a)
An ecosystem with low biodiversity will be more stable
b)
An ecosystem with high biodiversity will be more stable
12.
While exploring the Coppell Duck Pond, students found rocks covered with cyanobacteria, a type of bacteria that obtains its energy through photosynthesis. Hermit crabs help to keep this bacterium in the pond at bay by occasionally feeding on it. What is the relationship between the cyanobacteria and the hermit crabs in the Duck Pond?
a)
The cyanobacteria are parasites, and the hermit crabs are the hosts
b)
The cyanobacteria are carnivores, and the hermit crabs are the predators
c)
The cyanobacteria are herbivores, and the hermit crabs are the carnivores
d)
The cyanobacteria are producers, and the hermit crabs are the consumers
13.
Zooplankton are a type of heterotrophic plankton that feeds primarily on diatoms, a type of algae. Zooplankton are eaten by shrimp. Because shrimp eat zooplankton, they are classified as...
a)
producers
b)
predators
c)
parasites
d)
hosts
14.
The pie chart above shows information about the eating habits of armadillos. Which animals listed below would compete for the most food with armadillos?
a)
Bats that eat ants and spiders
b)
Anteaters that eat woodlice and termites
c)
Hedgehogs that eat woodlice and spiders
d)
Shrews that eat ants and termites
15.
The Great Salt Lake, located in the northern part of the state of Utah, is the largest salt water lake in the western hemisphere. The lake provides a habitat for lizard and mammalian wildlife as well as a wide variety of plant species. To successfully live in this saltwater environment, what might a plant species have to do to adapt?
a)
produce large amounts of food
b)
absorb large amounts of water
c)
store excess gases
d)
filter excess salt
16.
Crumpits are a special type of alien creature that are covered in fur and reside on the asteroid Thisbe, which is one of the few asteroids in the universe that supports producers. The crumpits used to be large because they gained extra weight during the warm months in order to survive the harsh cold months on Thisbe. A recent change in the asteroid’s path has caused more vegetation to be available for a longer period, so survival conditions for the crumpits have become less challenging. Researchers who study these creatures have most likely observed a decrease in the crumpit’s...
a)
life expectancy
b)
size
c)
reproduction rates
d)
body temperature
17.
Sodium Carbonate are often used by the Environmental Protection Agency as a fast acting algaecide because it does not kill algae outright but instead inhibits its photosynthesis. What might happen to the producers in Andy Brown Lake if an accidental spill of sodium carbonate occurred?
a)
the fish would grow larger than usual
b)
the algae population would increase
c)
the plants would increase in size but decrease in number
d)
the algae population would be reduced
18.
An example of a biotic factor in a forest ecosystem is...
a)
water
b)
sunlight
c)
tree
d)
rock
19.
An example of a consumer in a pond ecosystem is...
a)
a water lily
b)
algae
c)
phytoplankton
d)
a frog
20.
An example of an abiotic factor in a pond ecosystem is...
a)
fish
b)
phytoplankton
c)
water
d)
decomposers
21.
Two abiotic factors that affect an ecosystem are...
a)
temperature and animals
b)
plants and animals
c)
water and bacteria
d)
temperature and rainfall
22.
A _________ is an organism that makes its own food.
a)
autotroph
b)
consumer
c)
decomposer
d)
heterotroph
23.
A ____________ is an organism that gets its energy by eating other plants or animals.
a)
producer
b)
consumer
c)
autotroph
d)
herbitroph
24.
What is a symbiotic relationship in which both organisms benefit?
a)
mutualism
b)
commensalism
c)
parasitism
25.
What is a symbiotic relationship in which one animal benefits and one is not affected?
a)
mutualism
b)
commensalism
c)
parasitism
26.
What is a symbiotic relationship in which one animal benefits and one animal is harmed?
a)
mutualism
b)
commensalism
c)
parasitism
27.
Our dependence on the oceans can be harmful and damaging to the ocean systems. All of the following statements are examples of how humans have a negative impact on the oceans except...
a)
endangered sea turtles eating floating trash
b)
areas of algae blooms due to fertilizer runoff
c)
marine food web disruptions due to overfishing
d)
creating areas for artificial reefs to promote marine biodiversity
28.
Which of the following statements do not describe human dependence on ocean systems?
a)
Ships transport people and materials across oceans
b)
River and lake runoff carry sediments into the ocean
c)
Oceans providing oxygen to our atmosphere
d)
Shrimp, fish, and other organisms are harvested for food.
29.
Old ships placed in the ocean by humans can serve as artificial reefs. How can these artificial reefs affect the ecosystem?
a)
Artificial reefs provide more oxygen to organisms
b)
Artificial reefs provide a new habitat to organisms
c)
Artificial reefs provide less protection to small fish
d)
Artificial reefs provide additional locations to drill for oil
30.
When fertilizer is present in run-off, it can travel to large bodies of water such as our oceans. When this happens, algae blooms occur, bringing in bacteria to break down these organisms. Bacteria tend to use excessive amounts of oxygen during this decomposition process. What might happen as a result of this hypoxic condition? (Note: hypoxic means low levels of oxygen)
a)
The ocean becomes more acidic
b)
Artificial reefs are made
c)
Massive amounts of fish die
d)
Run-off
31.
Which of these human activities is most likely to cause the excessive growth of phytoplankton in the world’s oceans?
a)
The use of chemical fertilizers that are carried by runoff into rivers and oceans
b)
The logging of old-growth forests, which results in erosion
c)
The spraying of chemical herbicides that increase the carbon dioxide in the air
d)
The mining of fossil fuels, which requires digging underground tunnels
32.
The diet of triggerfish includes sea urchins. Over time, the increased use of recreational boats in areas inhabited by triggerfish could result in triggerfish...
a)
learning to eat stonefly larvae
b)
dying off because of a lack of plants
c)
moving to areas with greater food supply
d)
increasing in population
33.
What organism would be most affected by the overfishing of blue crab?
a)
Sea Otter
b)
Tuna
c)
Shark
d)
Phytoplankton
34.
Zooplankton is a _________________.
a)
producer
b)
consumer
35.
Phytoplankton is a _________________.
a)
producer
b)
consumer
36.
The numbers in the boxes represent animals in the food web. Which organisms would be considered omnivores?
a)
The organisms that fit in boxes 5 and 7
b)
The organisms that fit in boxes 2, 5, and 7
c)
The organism that fits in box 2 only
d)
The organism that fits in box 7 only
37.
The Canadian Goose dives under the water to feed on plants and seeds. Based on the information in the table, which bird would compete most with the Canadian Goose?
a)
Great Blue Heron
b)
Mallard
c)
Pied-Billed Grebe
d)
Great Egret
38.
CCP is a pesticide that was once widely used at the Coppell Duck Pond to control the mosquito population. However, this pesticide caused the eggshells of certain birds, including the mallard duck, to become fragile and thin. The adults would then accidentally crush the eggs while trying to incubate them. What happened to mallard duck populations as a results of CCP use by the city of Coppell?
a)
The populations increased much more quickly
b)
The populations decreased as fewer eggs survived long enough to hatch
c)
The populations remained stable over time
d)
The populations increased as mallard ducks laid more eggs to that more offspring would survive
39.
Which of the following is most likely to cause a change in the genetic traits in an isolated population of coral snakes?
a)
The exposure of an individual coral snake in the population to radiation that causes a mutation that is not passed on to its offspring
b)
An unusually dry summer in the snake population’s ecosystem
c)
The introduction of an invasive predator that preys on the brightest-colored individuals in the snake population
d)
A fast-moving wildfire that burns the canopy of the trees in the snake population’s ecosystem
40.
Which graph shows a situation in which the number of predators in a population depends on the number of prey?
a)
Graph A
b)
Graph B
c)
Graph C
d)
Graph D
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