Download Each of the following is an abiotic factor in the environment EXCEPT

Each of the following is an abiotic
factor in the environment EXCEPT
plant life
soil type
Rainfall
temperature
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re
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m
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Ra
lt
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so
i
nt
lif
e
0%
pl
a
1.
2.
3.
4.
Which is a biotic factor that affects the
size of a population in a specific
ecosystem?
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.
fp
of
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tio
ce
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nu
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be
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so
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ft
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0%
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.
0%
av
er
a
1. average temperature of
the ecosystem
2. type of soil in the
ecosystem
3. number and kinds of
predators in the
ecosystem
4. concentration of oxygen
in the ecosystem
During a long period when there is no rainfall, a
mountain lion may temporarily leave its usual
hunting territory to drink from a farm pond. This
behavior is probably due to
io
t ic
ab
in
an
ge
ch
th
e
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fa
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an
fin
d
to
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ed
its
0%
ha
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ot
ic
ab
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in
th
e
ch
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to
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ed
0%
an
fin
d
di
ffe
re
n.
..
0%
its
1. its need to find different
foods to eat
2. the change in an abiotic
factor in its environment
3. its need to find a new
habitat
4. the change in a biotic
factor in its environment
An interaction in which one organism
captures and feeds on another organism is
called
Competition
Symbiosis
Mutualism
Predation
io
n
ism
ut
ua
l
M
0%
Pr
ed
at
0%
sis
0%
Sy
m
bi
o
pe
t it
io
n
0%
Co
m
1.
2.
3.
4.
A symbiosis in which both species
benefit is
Commensalism
Mutualism
Competition
Parasitism
sm
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as
iti
Pa
r
iti
Co
m
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t
ism
ut
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l
M
lis
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sa
0%
on
0%
m
0%
Co
m
m
1.
2.
3.
4.
The symbiotic relationship between a
flower and the insect that feeds on its
nectar is an example of
i. .
.
th
e
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e
be
ca
n
ism
en
sa
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co
m
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t..
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i..
th
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th
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se
as
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ca
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pa
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ism
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.
...
0%
pr
ed
at
io
1. mutualism because the flower
provides the insect with food,
and the insect pollinates the
flower
2. parasitism because the insect
lives off the nectar from the
flower
3. commensalism because the
insect does not harm the flower
and the flower does not benefit
from the relationship
4. predation because the insect
feeds on the flower
logistic growth
growth density
exponential growth
multiple growth
th
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w
th
m
ul
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gr
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lg
wt
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0%
ex
po
ne
nt
ia
th
w
gr
o
st
ic
0%
de
ns
ity
0%
lo
gi
1.
2.
3.
4.
When individuals in a population
reproduce at a constant rate, it is
called
As resources in a population become
less available, population growth
en
te
rs
ap
...
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ex
po
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ha
se
of
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ss
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ly
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ac
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sr
ap
id
ly
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ry
in
1. declines rapidly
2. increases slowly
3. reaches carrying
capacity
4. enters a phase of
exponential growth
In a logistic growth curve, exponential
growth is the phase in which the
population
wt
h
gr
o
0%
st
op
s
...
wt
h
gr
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st
o
be
gin
ck
l
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q
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slo
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w
ya
nd
gc
ap
ry
in
gr
o
he
sc
ar
re
ac
0%
. ..
ac
it y
0%
w
1. reaches carrying
capacity
2. grows quickly and
few animals are
dying
3. growth begins to
slow down
4. growth stops
A biotic or an abiotic resource in the
environment that causes population
size to decrease is a
carrying capacity
limiting nutrient
limiting factor
growth factor
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to
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wt
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gr
o
lim
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gf
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ut
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nt
lim
iti
n
ry
in
gc
ap
a
cit
y
0%
ca
r
1.
2.
3.
4.
All of the following are limiting factors
EXCEPT
Immigration
Competition
Predation
Human disturbances
0%
an
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io
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0%
Hu
m
an
di
st
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Pr
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on
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Co
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m
igr
at
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n
0%
Im
1.
2.
3.
4.
If a population grows larger than the
carrying capacity of the environment,
the
death rate may rise
birthrate may rise
death rate must fall
birthrate must fall
0%
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at
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rth
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m
ay
m
ay
ra
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h
0%
l
0%
ris
e
0%
de
at
1.
2.
3.
4.
Which of the following is characteristic
of parasitism?
0%
or
..
.
e.
liv
es
i
n
sid
sm
an
i
an
ism
or
g
o
Tw
or
g
e
iv
sl
an
ism
or
g
o
Tw
0%
sf
ee
d
.. .
d
an
lls
ki
sm
an
i
or
g
On
e
0%
to
ge
. ..
0%
On
e
1. One organism kills and
consumes another.
2. Two organisms live
together and neither is
harmed
3. Two organisms feed side by
side from the same food.
4. One organism lives in or on
another and benefits.
An ecosystem is made up of:
0%
liv
in
0%
yi.
.
y..
.
de
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ph
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s
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s
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Ph
ys
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l
liv
in
0%
y
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ly
0%
liv
in
1. living things only
2. Physical environment
only
3. living things and the
physical environment
4. living things and
decaying matter
When a rabbit population in a meadow
cannot grow any larger, it has reached the
Climax community
Carrying capacity
Limiting factor
Minimum size
M
in
im
um
fa
ct
ng
it i
Lim
ng
ry
i
Ca
r
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o.
..
ac
. ..
ca
p
un
i..
m
co
m
ax
0%
s iz
e
0%
.
0%
Cl
im
1.
2.
3.
4.
A population of rabbits is at its
carrying capacity when the population
Reproduces
becomes extinct
stops growing
can’t survive
0%
e
0%
viv
’t
su
r
ca
n
st
op
s
gr
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in
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0%
es
ex
t in
c..
.
be
co
m
du
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s
0%
Re
pr
o
1.
2.
3.
4.
An unusually cold winter causes the squirrel
population to decrease. This is an example of
temperature as a
1. carrying capacity
2. Limiting factor
3. Climax community
4. Pattern in space
sp
a.
..
in
te
rn
ax
Cl
im
Pa
t
co
m
m
fa
ct
ng
it i
Lim
0%
un
i..
c..
.
ap
a
gc
ry
in
ca
r
0%
.
0%
o.
..
0%
Which of the following is characteristic
of parasitism?
an
ism
s.
l..
.
sm
an
i
or
g
o
Tw
or
g
o
Tw
0%
..
0%
or
g
an
ism
s.
k.
..
sm
an
i
or
g
On
e
0%
..
0%
On
e
1. One organism kills and
consumes another.
2. Two organisms live
together and neither is
harmed
3. One organism lives in or
on another and benefits.
4. Two organisms nourish
each other; both benefit.
Biotic factors in an ecosystem may
include:
s,
fu
ng
i
.. .
al
an
im
im
an
nt
s,
pl
a
0%
re
,w
al.
l..
.
,s
oi
te
r ia
ba
c
0%
...
0%
..
0%
te
m
pe
ra
tu
1. bacteria, soil, and
water
2. plants, animals, and
bacteria
3. temperature, water,
and soil
4. animals, fungi, and
temperature
Certain bacteria living in a human's large intestine help
to produce vitamin K. This relationship is an example of
Parasitism
Mutualism
Commensalism
Predation
io
n
0%
Pr
ed
at
Co
m
m
en
sa
lis
ism
ut
ua
l
M
as
iti
0%
m
0%
sm
0%
Pa
r
1.
2.
3.
4.
An herbivore population may
0%
o.
..
ab
ca
r
th
e
of
all
ex
ce
ed
it s
ca
r
ex
ce
ed
it s
p
eu
at
os
cil
l
0%
...
0%
...
0%
a.
..
1. oscillate up and down as its
major predator increases and
decreases in number.
2. exceed its carrying capacity if its
major predator is removed.
3. exceed its carrying capacity
when it is introduced to a new
community.
4. all of the above are true.
Which of the following IS NOT an
example of mutualism?
xin
en
-fi
i(
m
y.
..
...
0%
ni
tro
g
os
t
ah
0%
tf
un
g
l..
.
gp
er
in
w
af
lo
0%
sp
ec
ie
s..
.
0%
ro
o
1. a flowering plant and its
pollinator species
2. a host species and its
parasite.
3. root fungi (mycorrhizae)
and tree species
4. nitrogen-fixing bacteria
and their host species
Which of the species paired below
have a competitive relationship?
deer/mountain lion
deer/grass
deer/sheep
deer/hawk
k
ha
w
de
er
/
sh
ee
p
de
er
/
ss
gr
a
de
er
/
m
ou
nt
ai
n
.. .
25% 25% 25% 25%
de
er
/
1.
2.
3.
4.
Mice and gophers are eating a farmers’ crop.
What variable might the farmer change to alter
this ecosystem?
iff
er
en
. ..
25%
us
in
gd
pe
st
ici
d
ls
n.
..
es
. ..
25% 25%
se
ve
ra
ad
d
fe
rti
l
ize
th
e
...
25%
us
e
1. fertilize the crops more
often.
2. add several snakes to
the field.
3. use pesticides to
reduce the number of
insects.
4. using different farming
techniques.
Which of the following statements is
true?
1. Symbiosis refers to different
organisms living together.
2. Members of a symbiotic
relationship cannot live without
each other.
3. Symbiosis refers to different
organisms living together and
benefiting from each other.
4. A parasite is not in a symbiosis
with its host.
A
pa
ra
sit
e
is
.
..
re
fe
.. .
sis
bi
o
Sy
m
em
M
Sy
m
bi
o
be
rs
sis
of
a
s..
.
re
fe
.. .
25% 25% 25% 25%
Of the following types of interactions,
which one is least likely to limit population
size?
.. .
od
pa
ra
s
iti
pe
t it
io
br
o
Co
m
m
en
sa
lis
io
n
25%
n
25% 25%
m
25%
Co
m
Predation
Commensalism
Competition
brood parasitism
Pr
ed
at
1.
2.
3.
4.
When two organisms attempt to utilize
the same resource, the result is:
pa
r
ism
25%
as
it i
sm
25%
ut
ua
l
Co
m
m
en
sa
lis
on
iti
25%
m
25%
M
Competition
Commensalism
Mutualism
parasitism
Co
m
pe
t
1.
2.
3.
4.