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Population Ecology

Total questions: 22

Worksheet time: 15mins

Name
Class
Date
1.
Largest number of individuals of a population that the environment can support...  
a)
carrying capacity
b)
population crash
c)
lag phase
d)
mutualism
2.
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
3.
When a population grows past the ecosystem's carrying capacity, what happens to the population?
a)
Continues to grow
b)
The population starts to die off to return to carrying capcity
c)
The population will go extinct due to lack of resources
d)
The population grows then finds a new carrying capacity
4.
When organisms move out of the population, this is known as
a)
emigration
b)
abandonment
c)
immigration
d)
succession
5.
which statement sounds accurate based on the graph data. 
a)
The zebra and lions do not affect each other
b)
when lions population increases, so does the zebra population
c)
When the zebra population increases, it causes the lion population to also increase
d)
when zebra populations go down, the zebra population goes up. 
6.
Which kind of growth does the human population follow? It is described as a J-shaped curve.
a)
Exponential Growth
b)
Logistic Growth
c)
Outstanding Growth
d)
Minimal Growth
7.

Which of the following are density dependent factors?

a)

competition for resources

b)

predation

c)

disease

d)

natural disasters

8.
What type of growth is represented behind?
a)
exponential
b)
logistics
c)
a good kind
d)
representative
9.
What point on the graph represents the carrying capacity?
a)
A
b)
B
c)
C
d)
D
10.

Which of the following are examples of a density independent factors?

a)

forest fire

b)

seasonal cycles

c)

storms

d)

disease

11.
A type of dispersion where individuals are clumped together such as a herd or school.
a)
clumped dispersion
b)
carrying capacity
c)
birth rate
d)
uniform dispersion
12.
The way in which individuals of a population are spread in an area or volume.
a)
population dispersion
b)
population density
c)
population crash
d)
logistic growth
13.

Tracks organisms that tend to live long lives (low death rate and high survivorship rate); toward the end of their life expectancies, however, there is a dramatic increase in the death rate.

a)

Type I

b)

Type II

c)

Type III

d)

Type IV

14.

These organisms typically live in unstable, unpredictable environments & are able to reproduce rapidly (exponentially). They do not take care of their young & are subject to predation.

a)

k-strategist

b)

r-strategist

c)

m-strategist

d)

s-strategist

15.

Describes organisms with a high death rate (or low survivorship rate) immediately following birth. Examples include bacteria, fishes, and invertebrates.

a)

Type I

b)

Type II

c)

Type III

d)

Type IV

16.

Which organism best illustrates R-selection?

a)

a polar bear producing one or two cubs every three years

b)

the production of thousands of eggs every summer by frogs

c)

Humans who typically have 0-4 kids over their lifespan

d)

An elephant who produces one offspring and cares for it for 10+ years.

17.
The measure of individuals living in a defined area.
a)
population density
b)
population crash
c)
logistic growth
d)
limiting factor
18.

These organisms occupy stable environments, are larger in size and have longer life expectancies. They produce, during their life spans, fewer offspring, but place a greater investment in each.

a)

k-strategist

b)

r-strategist

c)

m-strategist

d)

s-strategist

19.

Describes organisms where death is common at all ages.

a)

Type I

b)

Type II

c)

Type III

d)

Type IV

20.

Imagine that a species of fish used to be a broadcast spawner (producing many eggs that then get no subsequent parental care) but has evolved to be a mouth brooder(holding the eggs in the parent’s mouth until they hatch and then caring for the young for a while). We would expect the survivorship curve of this species to

a)

shift from Type II to Type III.

b)

shift from Type II to Type I or Type III.

c)

shift from Type III toType I or II.

d)

No shift

21.

A population experiences lag when

a)

N approaches K

b)

N approaches 0

c)

G is small and N is small

d)

G is small and N is large

22.

You do a study on koalas in Australia and find that there are 15 koalas per acre. This is a measurement of

a)

dispersion

b)

density

c)

surviorship

d)

population

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