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WorksheetsHBio Ecology
Total questions: 50
Worksheet time: 31mins
Name
Class
Date
1.
An organism that produces its own food supply from inorganic compounds is called a(an)
a)
heterotroph
b)
consumer
c)
detritivore
d)
autotroph
2.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
3.
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
4.
Autotrophs make up the _______ level in all ecosystems.
a)
First
b)
Second
c)
Third
d)
Fourth
5.
symbiotic relationship in which both organisms benefit
a)
competition
b)
Mutualism
c)
nitrogen fixation
d)
energy pyramid
6.
A living relationship between two species in which one organism is harmed is called...
a)
mutualism
b)
commensalism
c)
parasitism
d)
niche
7.
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.
8.
The image provided is an example of a(n):
a)
Producer
b)
Autotroph
c)
Consumer
d)
Insect
9.
The amount of energy that usually transfers from one trophic level to the next...
a)
10%
b)
20%
c)
80%
d)
50%
10.
Which of the following would be the definition of a detritivore?
a)
Animals that eat insects.
b)
Organisms that feed on rocks, recycling the nutrients back into the ground.
c)
Organisms that eat only pants
d)
Things that feed on dead organisms, recycling the nutrients back into the ground.
11.
An illustration that uses arrows to show the many possible directions in which matter and energy can pass through the organisms in an ecosystem.
a)
Food chain
b)
Food web
c)
Energy Pyramid
d)
Succession Map
12.
The nonliving aspects of an ecosystem are called
a)
Abiotic factors
b)
Biotic factors
13.
The living portions of the ecosystem are called
a)
Biotic factors
b)
Abiotic factors
14.
Water temperature would be an example of ...
a)
A biotic factor
b)
An abiotic factor
15.
A collection of organisms that belong to different populations but all live in the same area and interact with one another.
a)
Population
b)
Ecosystem
c)
Community
d)
Ecosphere
16.
A place where an organism lives is called
a)
Terrain
b)
Habitat
c)
Community
d)
Population
17.
A collection of organisms that make up a community as well as all of the nonliving aspects of the environment.
a)
Population
b)
Community
c)
Habitat
d)
Ecosystem
18.
Organisms that can capture energy from inorganic, nonliving sources are called
a)
Producers
b)
Consumers
c)
Detritivores
d)
Carnivores
19.
Organisms that feed on both living producers and other consumers are called
a)
Carnivores
b)
Omnivores
c)
Herbivores
d)
Detritivores
20.
The general name for organisms like animals and fungi that get their energy from eating other organisms are called
a)
Producers
b)
Consumers
c)
Detritivores
d)
Carnivores
21.
An organism at the second trophic level would be considered a...
a)
Top carnivore
b)
Producer
c)
Herbivore
d)
Carnivore
22.
A graphic illustration that shows each trophic level and the amount of useable energy contained within.
a)
Food chain
b)
Food web
c)
Energy Pyramid
d)
All of these
23.
What is the major difference between a community and an ecosystem?
a)
A community involves only the biotic, not the abiotic
b)
An ecosystem only includes herbivores and carnivores-- no decomposers
c)
An ecosystem involves only the biotic, AND THE abiotic
d)
An ecosystem is just a larger community
24.
What are the correct types of Trophic levels?
a)
Producers
Primary
Secondary
Primary
Secondary
b)
Primary
Secondary
Secondary
c)
Producers
Consumers
Decomposers
Consumers
Decomposers
d)
Producers
Primary
Secondary
Tertiary
Primary
Secondary
Tertiary
25.
What are the major differences between a species and a population?
a)
Populations consist of ALL of the individual organisms within a species in a given area/ecosystem that are fertile
b)
Populations are a collection of many different types of species that are not related to each other
c)
Populations are just a larger amount of individuals
d)
Populations are the number of individuals within a species that are identical
26.
What makes Fungi so unique when it comes to trophic levels?
a)
They are producers so they can be high or low
b)
They are consumers of only plants
c)
They are consumers of all types of organisms because they decompose
d)
They are consumers of only the primary trophic level
27.
Which of the following describes a niche?
a)
where an organism lives and gets what it needs to survive
b)
all of the living things in the environment
c)
An organism's role or job in the ecosystem
d)
all of the non-living things in the environment
28.
which of the following best describes all of the lob lolly pine trees in a particular area of the forest?
a)
organism
b)
population
c)
community
d)
ecosystem
29.
Which level of organization includes a population of seals interacting with a population of sea urchins interacting with a population of kelp.?
a)
organism
b)
ecosystem
c)
community
d)
Biome
30.
Which level of organization includes both biotic and abiotic factors interacting with one another?
a)
population
b)
ecosystem
c)
community
d)
organism
31.
What do the arrows in a food web represent?
a)
equals
b)
it points towards the organism that is being eaten
c)
yeilds or makes
d)
it points towards the organism that is receiving energy from what it has eaten
32.
Use the food chain below to answer the following question:
Grass--> Grasshopper--> Bird
What word best describes the grasshopper?
Grass--> Grasshopper--> Bird
What word best describes the grasshopper?
a)
producer
b)
secondary consumer
c)
herbivore
d)
omnivore
33.
Use the following food chain to answer this question
Grass--> Insects--> Shrews-->Owl
What would happen if all the insects were to be eliminated?
Grass--> Insects--> Shrews-->Owl
What would happen if all the insects were to be eliminated?
a)
The grass would decrease and the shrews would increase
b)
the grass would decrease and the shrews would decrease
c)
the grass would increase and the shrews would decrease
d)
the grass would increase and the shrews would increase
34.
What do we call the maximum number of individuals that can survive in an ecosystem based on the resources that are available?
a)
Limiting Factors
b)
Carrying Capacity
c)
Population Density
d)
Emigration
35.
There are 100 blades of grass within a square foot of the park. This number refers to which term?
a)
Limiting Factors
b)
Carrying Capacity
c)
Birth Rate
d)
Population Density
36.
What will a population graph look like when death rate equals birth rate?
a)
Increasing
b)
Descreasing
c)
Flat line
d)
Increasing and then Decreasing
37.
Which one is NOT an example of a decomposer?
a)
mushroom
b)
leaves
c)
mold
d)
worm
38.
Examples of a producer
a)
frog
b)
algae
c)
worm
d)
mouse
39.
Example of a decomposer
a)
fungus
b)
mouse
c)
plants
d)
frogs
40.
Which of the following are methods of nitrogen fixation
a)
Decomposition and excretion
b)
Respiration and transition
c)
Condensation and Evaporation
d)
Lightening and bacteria
41.
Carbon is sent out to the atmosphere through all of the following BUT...
a)
photosynthesis
b)
respiration
c)
burning fossil fuels
d)
decomposition
42.
Energy does what as it moves up the food chain?
a)
Stays the same
b)
Increases
c)
Decreases
43.
Ten fish were living well in a 10-gallon fish tank. When five fish were added to the tank later, some fish began to die. Which best explains this occurrence?
a)
The fish ran out of carbon dioxide.
b)
The fish had no space in which to swim.
c)
The fish exceeded the carrying capacity of the tank.
d)
The new fish began to use the older fish for food.
44.
What does biodiversity mean?
a)
Only one species in an area.
b)
The different amount of species in an area
c)
All abiotic life
d)
Nitrogen fixation
45.
What is a niche?
a)
the place where a species lives
b)
what a species eats
c)
the role of a species
d)
how a species uses resources
46.
Which of the following are biotic?
I. Decomposers
II. Energy flow
III. Producers
I. Decomposers
II. Energy flow
III. Producers
a)
I only
b)
II only
c)
III only
d)
I and III
47.
Use Figure 3-2. Which ecosystem is the most productive?
a)
tundra
b)
tropical rainforest
c)
coral reefs
d)
swamps and marshes
48.
Use Figure 3-2. How would you describe the relationship between temperature of a continental ecosystem and net primary productivity based on the data provided?
a)
there is no clear relationship between temperature and productivity
b)
the warmer the ecosystem, the higher the productivity
c)
the colder the ecosystem the higher the productivity
d)
the warmer the ecosystem, the lower the productivity
49.
Use Figure 3-3. Looking at the ecological pyramid above, what would be the most likely number of joules to fill in X, Y and Z?
a)
X=100; Y=1000; Z=10,000
b)
X=1; Y=500; Z=10,000
c)
X=10,000; Y=500; Z=1
d)
X=50; Y=50,000; Z=500,000
50.
What happens during nitrogen fixation?
a)
Bacteria in the soil convert nitrate into nitrogen gas and nitrous oxide.
b)
Nitrogen wastes are into ammonium.Organisms convert nitrogen into carbon dioxide and energy,
c)
Organisms convert nitrogen into carbon dioxide and energy,
d)
Atmospheric nitrogen diffuses into the soil and is converted into ammonia.
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