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WorksheetsCh 8 Communities and Populations
Total questions: 15
Worksheet time: 11mins
Name
Class
Date
1.
What is meant by community?
a)
The whole population of one species living together in a defined area.
b)
The symbiosis of different species occupying the same area.
c)
The social structure and diversity of a species in a given area.
d)
Populations of different species occupying the same area simultaneously.
2.
What causes competition?
a)
need for status within the group
b)
limited supply of essential resources
c)
prospect of winning
d)
over abundance of essential supplies
3.
What does this figure represent?
a)
community
b)
niche
c)
organism
d)
species
4.
What name is given to any variable which restricts the growth of a population?
a)
population growth
b)
competition factor
c)
biotic potential
d)
limiting factor
5.
What is migration?
a)
population growth
b)
population extinction
c)
population movement
6.
All the different populations that live together in an area make up a(n)
a)
organism
b)
community
c)
species
d)
ecosystem
7.
What is the death of all members of a species?
a)
Overpopulation
b)
Poaching
c)
Extinction
8.
A prairie dog, a hawk, and a snake are all members of the same _____.
a)
niche
b)
community
c)
species
d)
population
9.
Which is a biotic factor you might find in an ecosystem?
a)
rocks
b)
trees
c)
rain
d)
river
10.
A group of organisms that are similar and reproduce to produce fertile offspring.
a)
species
b)
population
community
community
c)
population
d)
ecosystem
11.
The number of deaths in a population in a certain amount of time.
a)
birth rate
b)
death rate
c)
population density
d)
net population change
12.
The number of births in a population in a certain amount of time.
a)
death rate
b)
birth rate
c)
population density
d)
net population change
13.
Which is a BIOTIC factor?
a)
grass
b)
sunlight
c)
oxygen
d)
water
14.
a)
Population
b)
Community
15.
a)
Population
b)
Community
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