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WorksheetsEcology Unit
Total questions: 31
Worksheet time: 8hrs 33mins
Name
Class
Date
1.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
2.
Green plants are
a)
producers
b)
consumers
c)
herbivores
d)
omnivores
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.
This is an image of a _________.
a)
consumer
b)
scavenger
c)
decomposer
d)
producer
6.
symbiotic relationship in which both organisms benefit
a)
competition
b)
Mutualism
c)
nitrogen fixation
d)
energy pyramid
7.
A living relationship between two species in which one organism is harmed is called...
a)
mutualism
b)
commensalism
c)
parasitism
d)
niche
8.
The energy at each trophic level in the pryamid of energy decreases by a factor of ____.
a)
10
b)
1
c)
100
d)
2
9.
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.
10.
The image provided is an example of a(n):
a)
Carnivore
b)
Herbivore
c)
Producer
d)
Autotroph
11.
The image provided is an example of a(n):
a)
Producer
b)
Autotroph
c)
Consumer
d)
Insect
12.
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.
13.
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
14.
The nonliving aspects of an ecosystem.
a)
Abiotic factors
b)
Biotic factors
15.
The living portions of the ecosystem.
a)
Biotic factors
b)
Abiotic factors
16.
Water temperature would be an example of ...
a)
A biotic factor
b)
An abiotic factor
17.
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
18.
A place where an organism lives.
a)
Terrain
b)
Habitat
c)
Community
d)
Population
19.
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
20.
An organism at the second trophic level would be considered a...
a)
Top carnivore
b)
Producer
c)
Herbivore
d)
Carnivore
21.
True or False: It is possible for a carnivore to be a producer.
a)
False
b)
True
22.
largest number of individuals of a population that the environment can support
a)
carrying capacity
b)
primary succession
c)
denitrification
d)
mutualism
23.
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
24.
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
25.
Organism that feeds on animal and plant remains that did not capture; scavenger
a)
carnivore
b)
detritivore
c)
consumer
d)
species
26.
Study of interactions between organisms and their environment
a)
niche
b)
community
c)
ecology
d)
ecosystem
27.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
28.
Populations of different organisms living in a defined area
a)
species
b)
community
c)
niche
d)
biome
29.
The unique position that a species has in the physical use of its habitat and in its function (job) within an ecosystem
a)
producer
b)
biotic factors
c)
ecosystem
d)
niche
30.
Organisms that makes its own food using sunlight or chemicals; producer
a)
decomposer
b)
autotroph
c)
heterotroph
d)
herbivore
31.
Organisms that breaks down and absorbs nutrients from dead organisms
a)
consumer
b)
trophic level
c)
decomposer
d)
species
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