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WorksheetsEcosystems Review
Total questions: 21
Worksheet time: 22mins
Name
Class
Date
1.
The relationship between seaweed and sea turtles is an example of
a)
decomposition
b)
predator and prey
c)
competition
d)
producer and consumer
2.
How is a food web different from a food chain?
a)
A food web combines many different food chains.
b)
A food web does not include decomposers whereas a food chain does.
c)
A food web is for insects whereas a food chain is for mammals.
d)
A food web is for insects whereas a food chain is for mammals.
3.
Organism A spends a significant portion of its life in or on organism B. Organism A causes harm to organism B without immediately killing it. Which of the following describes this interaction?
a)
parasite/host
b)
predator/prey
c)
carnivore/omnivore
d)
host/parasite
4.
With which abiotic factor does a black bear interact?
a)
salmon
b)
plants
c)
insects
d)
a cave
5.
What is the role of an oak tree in an ecosystem?
a)
It cannot make its own food.
b)
It uses the sun's energy to make food.
c)
It eats other organisms.
d)
It breaks down dead organisms and returns nutrients to the soil.
6.
Which of the following is an interaction with an abiotic element of the environment?
a)
catching beetles on the lawn
b)
drinking water from a stream
c)
burying acorns by an oak tree
d)
running from a neighbor's cat
7.
A forest food chain contains a tree, grasshopper, lizard, bird, and wolf. Which organism(s) are consumers?
a)
All of the organisms
b)
wolf, lizard, and bird
c)
wolf
d)
wolf, lizard, bird, and grasshopper
8.
Which type of organism "recycles" nutrients back into an ecosystem?
a)
decomposers
b)
consumers
c)
producers
d)
omnivores
9.
A pond ecosystem includes a number of different types of birds, mammals, reptiles, and fish. All of these different groups make up the ecosystem's
a)
microorganisms
b)
abiotic factors
c)
populations
d)
community
10.
Dan lives in a small rural community several miles from the nearest city. What do you predict will be the greatest immediate effect that a new housing development will have on the ecosystem surrounding Dan's community?
a)
The increase in traffic cause by the development's residents
b)
The strain on the existing school system caused by population growth
c)
The existing habitat that will be lost in construction of the development
d)
The increase in electricity and water usage required by the development.
11.
Manual builds a terrarium for his pet lizard. Which is an abiotic factor he should include in the habitat?
a)
plants
b)
insects
c)
water
d)
fish
12.
An ecosystem only has a certain amount of _______________ to support a certain number of organisms.
a)
clothing
b)
limiting factors (food, water, space, and shelter)
c)
grass
d)
none of the above
13.
How do tides affect an estuary?
a)
They control the population of sharks that are living
b)
They control how much water covers the land
c)
They control the amount of algae that grows
d)
They control the salinity of water
14.
A non-native plant in an ecosystem spreads quickly. This will most likely directly affect the native plants by
a)
leaving them less space
b)
giving them more food
c)
helping them grow
d)
leaving them more sun
15.
Which of the following would be the best habitat for a pet cricket?
a)
a birdcage
b)
a cardboard box
c)
an aquarium
d)
a terrarium
16.
Which of the following is an example of a community?
a)
squirrels, red robins, and pine trees
b)
a group of thirteen blue jays
c)
a school of flounder
d)
sand, rocks, and air
17.
In one ecosystem, snakes eat birds, plants make fruit, and birds eat fruit. What is the correct food chain?
a)
snake→plant→bird
b)
bird→plant→snake
c)
plant→bird→snake
d)
snake→bird→plant
18.
Which animal is an herbivore?
a)
fox
b)
deer
c)
frog
d)
coyote
19.
Which two organisms show a parasite and host interaction?
a)
a tick and a dog
b)
a hawk and a snake
c)
a person and spiders
d)
flowers and bees
20.
A condition or resource that keeps a population at a certain size is known as a _______________
a)
balance of nature
b)
population
c)
limiting factor
d)
community
21.
Danielle is studying an ocean ecosystem. What biotic factors are likely to be present in an ocean ecosystem?
a)
coral, clown fish, and sponges
b)
otters, ducks, and trout
c)
water, soil, crayfish, and ducks
d)
water, sunlight, and rocks
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