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WorksheetsEcology and Ecosystems
Total questions: 50
Worksheet time: 1hrs 28mins
Name
Class
Date
1.
All of the different populations that live in a specific area.
a)
ecosystem
b)
habitat
c)
ecology
d)
community
2.
The non living parts of an ecosystem
a)
abiotic factors
b)
biotic factors
c)
oxygen
d)
soil
3.
The place where an organism lives that provides it with shelter, food and water.
a)
ecosystem
b)
population
c)
community
d)
habitat
4.
All the members of one type of species in a specific area.
a)
habitat
b)
community
c)
population
d)
ecosystme
5.
the living parts of an ecosystem
a)
biotic factors
b)
biology
c)
abiotic factors
d)
animals
6.
All of the different populations that live in a specific area.
a)
community
b)
habitat
c)
ecosystem
d)
village
7.
All organisms on planet Earth rely on the ________ for energy.
a)
moon
b)
sun
c)
producers
8.
All food chains, food webs and energy pyramids begin with the ________________.
a)
consumers
b)
producers
c)
sun
9.
The amount of energy passed from each level in an energy pyramid is _________.
a)
1000
b)
100
c)
10%
10.
As energy moves up each level in an energy pyramid there is _______energy.
a)
more
b)
less
11.
Organisms at the top of a food chain are _____________ consumers.
a)
tertiary
b)
secondary
c)
primary
12.
A primary consumer can be
a)
carnivore/herbivore
b)
herbivore/omnivore
c)
carnivore/omnivore
13.
Another term to describe consumer is
a)
producer
b)
autotroph
c)
hetrotroph
14.
Another term to describe producers is
a)
consumer
b)
autotroph
c)
heterotroph
15.
Organisms that return nutrients to the ecosystems are
a)
producers
b)
consumers
c)
decomposers
16.
All the organisms in a particular location, including their nonliving environment
a)
ecosystem
b)
carnivore
c)
niche
d)
population
17.
What may happen if the snowshoe hare was removed from the food web pictured?
a)
The insects in the habitat would increase.
b)
The shrew population would decrease due to being only hawk food source.
c)
The willow tree population would decrease.
d)
Foxes would dies due to no food source.
18.
Which of the following leads to a decrease in biodiversity?
a)
protection of ecosystems
b)
pollution control
c)
selective cutting
d)
introduction of exotic or invasive species
19.
Nitrogen fixation processes nitrogen from which of the following sources?
a)
lightning
b)
fertilizers
c)
dead plants
d)
atmosphere
20.
In the food web shown, the snail would be considered...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
21.
Which biome, because of its climate and amount of rainfall, has the largest number of species of plants and animals?
a)
Tundra
b)
Rainforest
c)
Desert
d)
Pineforest
22.
The diagram below shows the cycling of nutrients in an ecosystem.
The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?
The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Inorganic nutrients
23.
which symbiosis is this
a)
parasitism
b)
mutualism
c)
commensalism
d)
nonalism
24.
What is the term for each step in the transfer of energy and matter within a biological community?
a)
energy path
b)
food web
c)
trophic level
d)
food pyramid
25.
symbiotic relationship in which both organisms benefit
a)
competition
b)
Mutualism
c)
nitrogen fixation
d)
energy pyramid
26.
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.
27.
diagram that shows the energy available to each trophic level in an ecosystem; 10% is passed on to upper levels, the rest is lost as heat
a)
succession
b)
cellular respiration
c)
energy pyramid
d)
biochemical cycle
28.
a relationship between two in which one species, the predator, feeds on the other species, the prey
a)
chemosynthesis
b)
predation
c)
cellular respiration
d)
commensalism
29.
symbiotic relationship in which one organisms benefits and the other organism is not affected
a)
invasive (non-native) species
b)
mutualism
c)
nitrogen fixation
d)
commensalism
30.
A food chain is illustrated below:
The arrows represented most likely indicate
The arrows represented most likely indicate
a)
A. Energy released from metabolism into the environment as heat.
b)
B. Oxygen released from metabolism produced by cellular respiration.
c)
C. The absorption of energy from the environment that has been created.
d)
D. The transport of glucose away from the organism through photosynthesis.
31.
A pond ecosystem is shown in the diagram below. Which statement describes an interaction that helps maintain the dynamic equilibrium of this ecosystem?
Which statement describes an interaction that helps maintain the dynamic equilibrium of this ecosystem?
Which statement describes an interaction that helps maintain the dynamic equilibrium of this ecosystem?
a)
The frogs make energy available to this ecosystem through the process of photosynthesis.
b)
The algae directly provide food for both the rotifers and the catfish.
c)
The green-backed heron provides energy for the mosquito larvae.
d)
The catfish population helps control the populations of water boatman and waterfleas.
32.
Many rare…….. of animals are in danger of extinction.
a)
species
b)
classes
c)
being
d)
pairs
33.
People are destroying the air by adding…….to it
a)
polluted
b)
pollutions
c)
polluters
d)
pollutants
34.
What is climate change?
a)
Don't know
b)
Change in global climate, such as an increase in the global temperature and major variations in precipitation patterns.
c)
The earth has become sick.
d)
A change in the earth's climate due to human causes.
35.
Climate change can lead to _______________.
a)
sea level rise and floods in coastal areas
b)
droughts
c)
spread of dengue fever and malaria
d)
all of the above
36.
One solution for reducing the amount of atmospheric carbon dioxide would be to
a)
increase oceanic temperatures to enhance carbon dioxide uptake
b)
increase the rate of removal of tropical rain forests
c)
decrease the total area of rice paddies
d)
decrease the use of fossil fuels
37.
A species is defined as endangered when it
a)
suffers from damage to its habitat.
b)
suffers from disease or predation.
c)
when there are hazards to the continued life of the species.
d)
all of the above
38.
Burning fossil fuels results in (Choose ALL that apply):
a)
Increased greenhouse effect
b)
Decreased rain pH
c)
Increased rain pH
d)
Sustainable energy
39.
Which of the following is an example of REDUCING?
a)
taking glass bottles to the recycling center
b)
turning off the lights when you leave a room
c)
using a soup can for a pencil cup
d)
throwing your garbage in the trash can
40.
Conservation is the act of conserving, or protecting the environment, plants, and animals. Why is this so important? What are some things you can do to help conserve our environment?
a)
leave water on, leave TV on, run dishwasher with 1 plate
b)
run the washing machine with 1 shirt
c)
leave the refrigerator door open
d)
turn off water, turn off lights, turn off TV
41.
All of the following are renewable energy options except
a)
wind power
b)
solar power
c)
geothermal
d)
gas
42.
Which of the following is a direct effect of recycling?
a)
More water is polluted.
b)
Less coal and gas are used.
c)
Less trash goes into landfills.
d)
More energy comes from power plants.
43.
Why is reducing your carbon footprint so important?
a)
Carbon dioxide is the main cause of global warming
b)
Carbon dioxide helps grow forests and grasslands
c)
The atmosphere will cool with too little carbon dioxide.
d)
Sea levels will drop with too much carbon dioxide.
44.
This natural resource produces oxygen and removes carbon dioxide from the atmosphere.
a)
air
b)
topsoil
c)
trees
d)
water
45.
"Ensuring availability of water for future generations" is a
a)
Goal of water conservation
b)
Strategy of water conservation
c)
Key activity of water conservation
46.
A scientist studies a sample of swamp water. She finds that there are many dead plants and fish in the water. ________ in the water could be the main cause of this.
a)
oxygen
b)
litter and pollution
c)
mud and silt
d)
pebbles and sand
47.
what is the main cause of water pollution?
a)
invasive species
b)
animals
c)
plants and insects
d)
human impact and decision making
48.
Water that is stored in layers of rock and soil beneath the Earth's surface is called ________
a)
groundwater
b)
sewage
c)
a reservoir
d)
an underground stream
49.
__________________________ have leaves that change color and then fall to the ground.
a)
Incredulous Forests
b)
Savannahs
c)
Deciduous Forests
d)
Tundras
50.
The temperature in the deciduous forest biome is
a)
has cool seasons and warm seasons
b)
cold
c)
always warm
d)
snowy
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