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Ecology - Chapter 18

Total questions: 37

Worksheet time: 21mins

Name
Class
Date
1.
Organisms that can capture energy from inorganic, nonliving sources.
a)
Producers
b)
Consumers
c)
Detritivores
d)
Carnivores
2.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
3.
Autotrophs make up the _______ level in all ecosystems.
a)
First
b)
Second
c)
Third
d)
Fourth
4.
which symbiosis is this 
a)
parasitism 
b)
mutualism
c)
commensalism
d)
nonalism 
5.

What is the symbiotic relationship in which both organisms benefit?

a)

Competition

b)

Mutualism

c)

Nitrogen fixation

d)

Energy pyramid

6.
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. 
7.
The image provided is an example of a(n):
a)
Producer
b)
Autotroph
c)
Consumer
d)
Insect
8.
The nonliving aspects of an ecosystem.
a)
Abiotic factors
b)
Biotic factors
9.
The living portions of the ecosystem.
a)
Biotic factors
b)
Abiotic factors
10.
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
11.
A place where an organism lives.
a)
Terrain
b)
Habitat
c)
Community
d)
Population
12.
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
13.
Organisms that feed on both living producers and other consumers.
a)
Carnivores
b)
Omnivores
c)
Herbivores
d)
Detritivores
14.
An organism at the second trophic level would be considered a...
a)
Top carnivore
b)
Producer
c)
Herbivore
d)
Carnivore
15.
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
16.
 plants that convert energy from the sun or chemicals.
a)
decomposer
b)
primary consumer
c)
secondary consumer
d)
producer
17.
An organism that eat's plants and meat.
a)
herbivore
b)
omnivore
c)
carnivore
d)
detrivore
18.
A relationship that only helps one organism.
ex. barnacle on whale
a)
mutualism
b)
parasitism
c)
commensalism
19.
The role or function or job of a species in a community.
a)
habitat
b)
diet
c)
niche
d)
ecosystem
20.
grass->rabbit  -> fox
a)
food chain
b)
food web
c)
energy pyramid
21.
As you move upward, from level to level, in an energy pyramid, energy _____.
a)
increases
b)
decreases
c)
stays the same
d)
increases exponentially
22.
all populations of all species living in an ecosystem.
a)
population
b)
community
c)
ecosystem
d)
species
23.
Anything that can decrease the size of a population including living (biotic) and non living (abiotic) features of an ecosystem such as predators and drought.
a)
limiting factor
b)
habitat
c)
ecosystem
d)
carrying capacity
24.
What is Ecology?
a)
The study of animals.
b)
The study of life.
c)
The study of the relationships organisms have with one another and their environment.
25.
An organism that produces its own food supply from inorganic compounds is called a(an)
a)
heterotroph
b)
consumer
c)
detritivore
d)
autotroph
26.
Autotrophs make up the _______ level in all ecosystems.
a)
First
b)
Second
c)
Third
d)
Fourth
27.
The energy at each trophic level in the pryamid of energy decreases by a factor of ____.
a)
10
b)
1
c)
100
d)
2
28.
The image provided is an example of a(n):
a)
Carnivore
b)
Herbivore
c)
Producer
d)
Autotroph
29.
The nonliving aspects of an ecosystem.
a)
Abiotic factors
b)
Biotic factors
30.
The shrew provides energy for the _______?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
31.
A community of living and nonliving things in their natural environment makes up a 
a)
food web
b)
ecosystem
c)
food chain
32.
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
33.
relationship in which two species live closely together
a)
resource
b)
mutualism
c)
succession
d)
symbiosis
34.
Members of a species in a defined area
a)
Ecosystem
b)
community
c)
biodiversity
d)
population
35.
Part of the earth that living organisms inhabit
a)
biosphere
b)
biome
c)
niche
d)
ecosystem
36.
organisms that relies on other organisms for food; consumer
a)
herbivore
b)
decomposer
c)
heterotroph
d)
species
37.
Organisms that breaks down and absorbs nutrients from dead organisms 
a)
consumer
b)
trophic level
c)
decomposer
d)
species