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Ecology Part 2

Total questions: 20

Worksheet time: 33mins

Name
Class
Date
1.
What is symbiosis? 
a)
Animals trying to find a mate and reproduce. 
b)
Two species in a close relationship
2.
What is parasitism? 
a)
Relationship between 2 species and both are benefited.
b)
Relationship between 2 species and one benefits.  
c)
Relationship between 2 species and one gets harmed. 
d)
Relationship between 2 species and one is KILLED for food.
3.
 What is commensalism
a)
Relationship between 2 species and both benefits. 
b)
Relationship between 2 species and only one benefits but the other is not harmed. 
c)
Relationship between 2 species and one gets harmed. 
4.
 What is mutualism? 
a)
Relationship between 2 species and both benefits 
b)
Relationship between 2 species and only one is affected. 
c)
Relationship between 2 species and on is harmed. 
5.
What does this graph represent?
a)
a predator-prey relationship
b)
limiting factors in a population of rabbits
c)
exponential growth of insects
d)
carrying capacity of deer population
6.
What is a habitat?
a)
It is an artificial area where wildlife lives.
b)
It is a protected region created by people to save wildlife.
c)
It is any natural region where wildlife lives undisturbed.
7.
What does endangered mean?
a)
It means that it no longer exits. 
b)
It means that it is under threat or near extintion.
c)
It means that it is in great number.
8.
What are extinct species?
a)
Species that no longer exist
b)
Species that are in little number
c)
Species thar are in big number
9.
____________ is the addition of harmful materials to the environment.
a)
pollution
b)
ecotourism
c)
conservation
d)
recycle
10.
____________ is the addition of harmful materials to the environment.
a)
pollution
b)
ecotourism
c)
conservation
d)
recycle
11.
Pollution can cause harm to the ___________.  
a)
air
b)
land
c)
water
d)
all of the above
12.
How many full grown trees does it take to support 4 people?
a)
7 ½
b)
20
c)
2
d)
5
13.
How many acres of forests are cleared each hour by fires and machines?
a)
400 billion
b)
1.2 million
c)
4800
d)
50000
14.
What is the leading cause of deforestation?
a)
Diseases 
b)
Housing market
c)
Agriculture and Farming
d)
Paper mill
15.
After a volcanic eruption, lava covers the land. What is the order that plants grow to repopulate the area (known as succession)?
a)
Lichens → Shrubs → Grasses → Trees
b)
Shrubs → Trees → Grasses → Lichens
c)
Grasses → Lichens → Shrubs → Trees
d)
Lichens → Grasses → Shrubs → Trees
16.
The natural change in the communities in an ecosystem in order to reach biodiversity.
a)
ecological succession 
b)
climax community
c)
evolution
d)
pioneer speciles
17.
The picture shows what type of succession?
a)
primary
b)
secondary
c)
tertiary
d)
quadanary
18.
The picture shows what type of succession?
a)
primary
b)
secondary
c)
tertiary
d)
quadanary
19.
What are some limiting factors in a growing population that organisms compete for?
a)
Food, water, shelter, space.
b)
An owner, food, weather.
c)
Weather, shelter, summer.
d)
Food, spring, water.
20.
If additional snakes are introduced into this ecosystem, there will most likely be an immediate decrease in the _________.  
a)
hawk population
b)
rabbit population
c)
wildflower population
d)
grass population