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Populations Review
KY Core Content SC-HS-4.7.5
Kimberly Valerio
The number of individuals of a single
species per unit area is known as
25% 25% 25% 25%
th
ra
te
ns
it y
ow
de
po
pu
la
t io
n
gr
t io
n
po
pu
la
ic
gis
t
lo
rry
in
g
ca
gr
pa
c
ow
ity
th
Carrying capacity
Logistic growth
Population density
Population growth
rate i
ca
1.
2.
3.
4.
The movement of individuals into an
area is called
25% 25% 25% 25%
ca
rry
Em
igr
at
io
n
io
n
ra
t
m
ig
Im
in
g
m
ca
og
r
pa
c
ap
h
ity
y
demography
Carrying capacity
Immigration
Emigration
de
1.
2.
3.
4.
The graph below represents
1. Age structured
growth
2. Logistic growth
3. Limiting factors
4. Exponential Growth
The maximum number of organisms of
a particular species that can be
supported by an environment is called
t..
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ul
a
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4.
po
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in
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rr
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ca
ro
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...
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Di
a
ity
ca
gi
s
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tic
gr
ow
th
Logistic growth
Carrying capacity
Exponential growth
Population
regulation capacity
Lo
1.
2.
3.
4.
25% 25% 25% 25%
If a population grows larger than the
carrying capacity of its environment,
the
Death rate may rise
Birthrate may rise
Death rate may fall
Immigration rate
may increase
l
i..
.
fa
l
ay
ay
Im
m
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igr
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m
ay
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ay
r is
e
r is
e
25% 25% 25% 25%
de
1.
2.
3.
4.
Density-independent limiting factors
include
25%
25%
25%
sm
Pa
r
as
iti
on
iti
Co
m
pe
t
an
es
hu
rri
c
at
io
n
Predation
Hurricanes
Competition
Parasitism
pr
ed
1.
2.
3.
4.
25%
In logistic growth, what is used up to
cause population growth to slow or
stop?
Resources
Biomolecules
Carrying capacity
Water only
nl
y
W
at
er
o
it y
Ca
pa
c
ng
ry
i
Ca
r
Bi
om
ol
so
u
ec
ul
rc
e
es
s
25% 25% 25% 25%
Re
1.
2.
3.
4.
A limiting factor that depends on
population size is called a
ns
hi
p
y
at
io
el
cr
sit
i
pa
ra
pr
ed
a
to
r
-p
re
de
nt
nd
ep
en
nt
de
ns
ity
i
ep
en
de
ns
ity
d
de
1. Density-dependent
limited factor
2. Densityindependent
limiting factor
3. Predator-prey
relationship
4. Parasitic
relationship
25% 25% 25% 25%
Which of the following describes a
condition in which logistic growth
would occur
25%
2
25%
1
1. Bacteria grows at a
constant rate
2. New Immigration
laws in the 1920s
slowed immigration
in the U.S.A
25%
25%
Which of the following is a long term
effect of competition of two species
competing for the same resources?
25%
2
25%
1
1. Rise of prey would be followed by rise
in predators. As predators rise, prey
declines. Since there are less prey,
predators will decline
2. Rise of prey would be followed by rise
in predators. Prey will reproduce
more rapidly to balance out the
reduction of organisms eaten by the
predators. The prey will eventually
overpower the predators, resulting in
more prey
25%
25%
How can you account for the fact that
human population has grown more
rapidly the last 500 years?
1. The development of agriculture
and industry made life easier
thus making food supply more
reliable
2. Improved sanitation, medicine
and healthcare
3. Improved living conditions
increased life expectancy
4. Birth control is not used enough
Which of the following is a true
statement about age structure of a
population?
1. Populations with nearly equal
25%
numbers of people in each age
group will have a fast growth rate
2. Populations with many more young
children and many more teenagers
than adults will grow at a faster rate
3. Populations with many young
children and less older, will grow
very slow
ha
Pr
op
ph
a
na
A
se
se
e
Te
lo
ph
as
as
e
te
rp
h
In
25% 25% 25%
Which of the following is true about
the population of the U.S. in 2000?
1. There are more
older males than
females
2. There is a larger
middle age group
than any other
age group
3. There are more
females that are
teenagers