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Ecology Final Exam Review

Total questions: 51

Worksheet time: 44mins

Name
Class
Date
1.
A living or once-living organisms in an ecosystem is a
a)
population
b)
biotic factor
c)
abiotic factor
d)
community
2.
Which of the following is not an abiotic factor?
a)
sun
b)
temperature
c)
soil
d)
grass
3.
Which of the following is not a biotic factor?
a)
mushroom
b)
air
c)
elephant
d)
coyote
4.
Limiting factors are sometimes helpful because they can keep the population from getting too large.
a)
True
b)
False
5.
A group of the same type of organisms living in the same place at the same time.
a)
threatened species
b)
populations
c)
community
d)
limiting factor
6.
Which symbols best describe mutualism?
a)
+,+
b)
+,-
c)
+,0
d)
-,0
7.
Which symbols best describe parasitism?
a)
+,+
b)
+,-
c)
+,0
d)
-,0
8.
Cattle egrets are birds that forage in fields among cattle. The egrets get easy access to food and the cattle don't care if they are there or not.
a)
mutualism
b)
commensalism
c)
competition
d)
parasitism
9.
Mistletoe extracts water and nutrients from the spruce tree to the tree's detriment (harm). 
a)
Mutualsim 
b)
Parasitism 
c)
Commensalism 
10.
Refer to the diagram of the survivorship curve.
Which curve best describes an organism that invests a lot of energy in parenting?
a)
A
b)
B
c)
C
d)
this is not a survivorship curve
11.
What is the carrying capacity for this sheep population?
a)
1.8 million
b)
1.25 million
c)
1.6 million
d)
1.o million
12.
The largest number individuals a given environment can support is
a)
density dependent
b)
its niche
c)
its biotic potential
d)
its carrying capacity
13.
A factor that causes a population to decrease in size is called a __________ factor.
a)
capactiy
b)
biotic
c)
limiting
d)
abiotic
14.
Organisms that have a high death rate early in life, overcompensate for this by having more offspring; examples include oysters, trees, and fish. What type of survivorship curve is best illustrated by this description?
a)
Type III
b)
Type II
c)
Type IV
d)
Type I
15.
Organisms that have a 50/50 shot as survival at any given point during their lifespan.
a)
Type 1
b)
Type 2
c)
Type 3
d)
Type 4
16.
All of the living and nonliving things in an area that interact with each other are called a/an ______.
a)
community
b)
habitat
c)
population
d)
ecosystem
17.

What is a benefit of DDT?

a)

Use of DDT decreases amount of malaria cases, saving human lives

b)

Use of DDT decreases amount of cancer cases

c)

Use of DDT saves the lives of eagles, falcons, and other birds of prey

d)

Use of DDT increases number of mosquitoes

18.

What are some consequences of DDT? (Choose two answers)

a)

DDT gets into the human body fat

b)

DDT causes birds to lay fragile eggs that break

c)

DDT causes malaria, a deadly disease

d)

DDT increases the number of mosquitoes

19.

What is DDT?

a)

A pesticide, a chemical used to kill insects

b)

A chemical that helps insects

c)

A dance move

d)

A parasite that causes malaria

20.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
21.
An organism that uses sunlight to create its own food is known as a:
a)
Producer
b)
Heterotroph
c)
Consumer
d)
Decomposer
22.
What does a food chain represent?
a)
How all living organisms within a habitat are connected.
b)
All of the things that a particular animal eats.
c)
How plants create their own food.
d)
A single path of energy transfer within a habitat.
23.
An energy pyramid represents what?
a)
How much sunlight is available for the ecosystem to use. 
b)
How much energy a particular organism needs. 
c)
How much energy is needed to build a pyramid. 
d)
The amount of energy available to the next 'feeder' in a food web.
24.
How much energy is available to be passed on to the next trophic level in an ecosystem?
a)
100%
b)
10%
c)
50%
d)
75%
25.
The fox in this food web would be considered a:
a)
Tertiary Consumer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
26.
When experimenting with the growth of a plant, a scientist uses three (of the same type of) plants, two different fertilizers, equal light, and equal water. What type of variable is the fertilizer?
a)
Dependent
b)
Independent
c)
Control
d)
Compound
27.
Ms. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. What is the dependent variable?
a)
Distance traveled by the ball
b)
Height of the ramp
c)
Mass of the ball
d)
Where the experiment took place.
28.
Ms. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.
a)
Distance traveled by the ball
b)
Height of the ramp
c)
Mass of the ball
d)
Who set up the experiment (Ms. S, etc)
29.

How much water does a plant need to grow?

Which are the constant variables?

a)

The type of plant

b)

How much water you use

c)

Location of plant

d)

How much the plant grows

e)

How long you grow the plant

30.

How high can an average 6th grader jump?

Which are the constant variables?

a)

The age of the students

b)

The surface they are jumping from

c)

The height they can jump

d)

How well the students did on a math test the day before

31.

Big horn sheep sparring is an example of this time of relationship.

a)

Commensalism

b)

Intraspecies Competition

c)

Interspecies Competition

d)

Mutualism

32.
What prevents new wolves from naturally migrating to the island?
a)
Massive snow storms
b)
The lake dries up in the summer
c)
The Moose eat all the 
d)
high temperatures prevent ice bridges
33.
What agency is responsible for making decisions about Isle Royale?
a)
National Park Service
b)
Michigan Tech University
c)
US Geological Survey
d)
Department of  natural resources
34.
The moose population on this island is
a)
Increasing 
b)
Decreasing 
c)
Extinct 
d)
Not reproducing
35.
If wolves were re-introduced what would happen to the moose population
a)
The moose would go extinct from over hunting
b)
The wolf population would take over the island
c)
The moose population would decline to normal levels
d)
The moose would adapt to other environments
36.
What is an invasive species?
a)
A native (naturally found) species which are added to an area. 
b)
A non-native (not naturally found) species added to an area. 
c)
A keystone species in an environment
d)
none of the above
37.
An invasive species can be natural (as in a result or imigration due to habitat loss) or can be a result of human activity. True or false?
a)
True
b)
False
38.
Invasive species alter the ecosystem by a___________in number quickly,this leads to _____ food for the native  species. 
a)
increasing  less
b)
decline  decreasing
39.
The Asian Carp is causing what type of damage/risks to native animals?
a)
A.  It is eating the food of the native fish.
b)
B.  It is jumping out of the water, injuring boaters.
c)
C.  It destroys crops and clogs pipes.
d)
D.  Both answers A and B are correct.
40.

This species is the biggest threat to Maine lakes

a)

Killer Bee

b)

Burmese Python

c)

Eurasion Watermilfoil

d)

Black Rat

41.

All members of a population must be the same _____________

a)

Species

b)

Organism

c)

Sex

d)

Color

42.

Name the levels of an ecosystem in order from smallest to largest.

a)

Ecosystem, population, organism, community

b)

Community, organism, population, ecosystem

c)

Organism, population, community, ecosystem

d)

Ecosystem, community, population, organism

43.

Which is an example of competition?

a)

Two species living near each other

b)

Two species fighting over a shared resource

c)

One species that does not have enough food

44.

choose the best answer:


Ecoliteracy...

a)

Seeing the world through interconnectedness

b)

Refuse, Reduce, Reuse, Recycle

c)

DDT and the affect

d)

Energy trophic levels

45.
a)
Olympics
b)
Empire State Games
c)
Extreme Sports
d)
World Cup
46.
a)
WiFi
b)
Spotify
c)
Soundcloud
d)
Spotty  
47.
Largest country in the world
a)
China
b)
Canada
c)
Asia
d)
Russia
48.
How many days are in August?
a)
28
b)
30
c)
31
d)
912
49.
Name Batman’s crime fighting partner
a)
Robin
b)
Bat Mobile
c)
Bruce Wayne
d)
Spider Man
50.
 Who does the animated character Princess Fiona marry?
a)
Shrek
b)
Donkey
c)
Prince Charming
d)
Prince Phillip
51.
Where did the Olympic Games originate?
a)
Greece
b)
USA
c)
Canada
d)
Germany

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