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Ecology

Total questions: 25

Worksheet time: 22mins

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.

What does every food chain start with? (Even if it's not drawn or written there!)

a)

producers

b)

sun

c)

consumer

d)

decomposers

3.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
4.

Consumer that eats plants

a)

heterotroph

b)

herbivore

c)

producer

d)

community

5.
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. 
6.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
7.
In this Food Web Pyramid Which type of consumer gets only 10% of the energy stored in plants?
a)
Herbivore
b)
Carnivore
c)
Omnivore
d)
Secondary Consumer
8.

Which one is not a consumer?

a)

anemone

b)

bear

c)

shark

d)

vulture

9.
The image provided is an example of a(n):
a)
Carnivore
b)
Herbivore
c)
Producer
d)
Autotroph
10.
The amount of energy that usually transfers from one trophic level to the next...
a)
10%
b)
20%
c)
80%
d)
50%
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.

a)

Abiotic factors

b)

Biotic factors

13.
The living portions of the ecosystem.
a)
Biotic factors
b)
Abiotic factors
14.
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
15.
As you move upward, from level to level, in an energy pyramid, energy _____.
a)
increases
b)
decreases
c)
stays the same
d)
increases exponentially
16.
 plants that convert energy from the sun
a)
decomposer
b)
primary consumer
c)
secondary consumer
d)
producer
17.
What are the Abiotic factors in this image? 
a)
water, sunlight, dirt, air
b)
birds and plants
c)
birds, water, dirt
d)
plants, water
18.
Organisms that feed on both living producers and other consumers.
a)
Carnivores
b)
Omnivores
c)
Herbivores
d)
Detritivores
19.
relationship in which two species live closely together
a)
resource
b)
mutualism
c)
succession
d)
symbiosis
20.
A living relationship between two species in which one organism is harmed is called...
a)
mutualism
b)
commensalism
c)
parasitism
d)
niche
21.
symbiotic relationship in which both organisms benefit
a)
competition
b)
Mutualism
c)
nitrogen fixation
d)
energy pyramid
22.
which symbiosis is this 
a)
parasitism 
b)
mutualism
c)
commensalism
d)
nonalism 
23.

The largest population an area can support is the areas

a)

Limiting Factor

b)

Birth Rate

c)

Death Rate

d)

Carrying Capacity

24.

What would happen if a drought occurs and kills off most of the grass?

a)

populations of all levels of consumers would decrease

b)

primary consumers would have to adapt to eating each other

c)

primary consumer would die then 2nd consumers would eat them

d)

only population of the 2nd & higher consumers would decline

25.

What is the job of the decomposers?

a)

They are necessary part of the diet of most consumers.

b)

Convert plant material into a form that 1st consumers use

c)

make resources by breaking down waste materials

d)

extract energy from sunlight

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