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WorksheetsEcosystems
Total questions: 45
Worksheet time: 42mins
Name
Class
Date
1.
The nonliving parts of an ecosystem include
a)
water, sun, plants
b)
rocks, water, animals
c)
rocks, sun, water
d)
animals, plants, spiders
2.
Plants need this gas
a)
CO (carbon monoxide)
b)
CO2 (carbon dioxide)
c)
O2 (oxygen)
d)
O3 (ozone)
3.
Humans need this gas
a)
CO (carbon monoxide)
b)
CO2 (carbon dioxide)
c)
O2 (oxygen)
d)
O3 (ozone)
4.
Plants create their own food through the process called
a)
digestion
b)
respiration
c)
transpiration
d)
photosynthesis
5.
Animals that eat only plants are
a)
herbivores
b)
omnivores
c)
carnivores
6.
Animals that eat only animals are
a)
herbivores
b)
omnivores
c)
carnivores
7.
In an ecosystem, grass is eaten by mice and mice are eaten by snakes. If the snake population increases, what happens to the mouse population?
a)
increases
b)
decreases
c)
stays the same
8.
Shows how energy flows from one organism to another.
a)
food cycle
b)
prey chain
c)
food chain
d)
predator cycle
9.
an organism that makes its own food for energy
a)
consumer
b)
predator
c)
prey
d)
producer
10.
Which is the best description of an ecosystem?
a)
all of the living and nonliving things in an area
b)
all of the individuals of one species in an are
c)
all of the populations of living things in an area
d)
all of the abiotic factors in an area
11.
What is a example of an abiotic factor?
a)
Panda
b)
Turtle
c)
Butterfly
d)
weather
12.
Network of all food in an ecosystem
a)
ecology
b)
food web
c)
decomposer
d)
food chain
13.
What biome has the most rainfall per year?
a)
Tundra
b)
Taiga
c)
Tropical Rainforest
d)
Deciduous Forest
14.
What biome is the coldest?
a)
Tundra
b)
Taiga
c)
Temperate Forest
d)
Desert
15.
Organisms that get energy by eating dead things
a)
Producers
b)
Consumers
c)
Decomposers
d)
Scavengers
16.
Organisms that get energy by breaking down other organisms
a)
Producers
b)
Consumers
c)
Decomposers
d)
Scavengers
17.
Biodiversity refers to
a)
extinct species
b)
the variety of species on Earth
c)
nonrenewable resources
d)
the rate of species decline
18.
A relationship between two organisms in which one organism benefits and the other is unharmed
a)
Mutualism
b)
Competition
c)
Parasitsm
d)
Commensalism
19.
A relationship between two organisms in which both organisms benefit.
a)
Mutualism
b)
Competition
c)
Parasitsm
d)
Commensalism
20.
Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales.
a)
Mutualsim
b)
Parasitism
c)
Commensalism
21.
A tick and a dog have this type of relationship.
a)
mutualism
b)
commensalism
c)
neutralism
d)
parasitism
22.
A wrasse fish feeds on the parasites found on the black sea bass's body. Both species benefit.
a)
Mutualism
b)
Parasitism
c)
Commensalism
23.
If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?
a)
The bird population would stay the same
b)
The bird population would infinitely increase
c)
The bird population would decrease
24.
What is a food chain?
a)
Energy passing from one living thing to another.
b)
The animals located in one specific region.
c)
Complex interconnected paths
d)
The popular restaurants
25.
What is the study of the ecosystem?
a)
Climateology
b)
Meterology
c)
Ecology
d)
Geology
26.
True or False: It is possible for a carnivore to be a producer.
a)
False
b)
True
27.
An organism at the second trophic level would be considered a...
a)
Top carnivore
b)
Producer
c)
Herbivore
d)
Carnivore
28.
The general name for organisms like animals and fungi that get their energy from eating other organisms.
a)
Producers
b)
Consumers
c)
Detritivores
d)
Carnivores
29.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms.
d)
How carnivores get their food.
30.
which symbiosis is this
a)
parasitism
b)
mutualism
c)
commensalism
d)
nonalism
31.
symbiotic relationship in which both organisms benefit
a)
competition
b)
Mutualism
c)
nitrogen fixation
d)
energy pyramid
32.
_______________ is when an animal blends into its environment.
a)
camouflage
b)
mimicry
c)
warning coloration
33.
When an animal looks like another animal it is called ______________.
a)
camouflage
b)
mimicry
c)
warning coloration
d)
protective resemblance
34.
Which of these adaptations help an animals to survive?
a)
warning coloration
b)
protective resemblance
c)
mimicry
d)
all of these
35.
Without green plants, no ______
life could exist.
life could exist.
a)
animal
b)
renewable resource
c)
sun
d)
primary consumer
36.
What could NOT destroy
an ecosystem?
an ecosystem?
a)
flood
b)
drought
c)
primary consumer
d)
pesticide
37.
Which is an example of how an
ecosystem can change?
ecosystem can change?
a)
primary producer and a primary consumer
(example: a cow eats grass)
(example: a cow eats grass)
b)
a pond can become a marsh
c)
plants and animals in the ecosystem fill
each other needs.
each other needs.
d)
primary producer, a primary consumer and a
secondary consumer (Example: grass is eaten by
a cow and the cow meat is eaten by a person).
secondary consumer (Example: grass is eaten by
a cow and the cow meat is eaten by a person).
38.
What are examples of a three
links of a food chain?
links of a food chain?
a)
primary producer, primary
consumer, secondary consumer
consumer, secondary consumer
b)
grain, mouse, owl
c)
primary consumer,primary
producer, secondary consumer
producer, secondary consumer
d)
human, cow, grass
39.
Which type of organism helps return nutrients from dead plants and animals to the soil?
a)
producer
b)
prey
c)
predator
d)
decomposer
40.
What is one way people can disturb the balance of ecosystems?
a)
breathing air
b)
planting trees
c)
riding bicycles
d)
building houses
41.
How are a hawk and an owl able to succeed, even though they compete for food?
a)
The hawk eats the owl.
b)
The owl changes its diet.
c)
One animal moves to a different habitat.
d)
One hunts at night, and the other hunts during the daytime.
42.
What might be the effect on an ecosystem of a climate change from rainy to dry?
a)
no change
b)
a change from plants to animals
c)
a change from a forest to a marsh
d)
a change in kinds of plants and animals
43.
How would an ecosystem change if the rabbits that were the main prey for foxes became sick and died?
a)
The foxes would find new prey.
b)
The number of foxes would increase.
c)
The number of foxes would decrease.
d)
The foxes and rabbits would compete for food.
44.
A meadow has too many rabbits. What would help balance this ecosystem?
a)
more rain that grass needs
b)
more foxes that eat rabbits
c)
fewer foxes that eat rabbits
d)
more grass for the rabbits to eat
45.
Trash is dumped into landfills, therefore ________________________.
a)
the government passes laws about conserving energy
b)
overcrowding occurs
c)
pollutants enter the soil and cause harm to plans and animals
d)
people go their to live
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