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Carrying Capacity and Limiting Factors

Total questions: 40

Worksheet time: 30mins

Name
Class
Date
1.

What do limiting factors do?

a)

Separate biotic factors from abiotic factors.

b)

Determine which is the predator and which is the prey.

c)

Regulate how many organisms live in an ecosystem.

d)

Determine which natural disasters will hit an area.

2.

Organisms need ​​_____ to live and survive.

a)

space and resources

b)

resources

c)

space

d)

space

3.


Which of the following are abiotic limiting factors?

a)

The decomposers in an ecosystem.

b)

Carrying capacities of several species.

c)

The populations of producers in a given habitat.

d)

Water, space, and oxygen.

4.

Which of the following is a biotic limiting factor?

a)

The amount of breathable oxygen available to a population.

b)

The nitrogen to oxygen ratio in the air supply.

c)

Food available for organisms.

d)

The number of bodies of water in a habitat.

5.

In biology, what is carrying capacity?

a)


How much weight an organism can lift.

b)

The maximum population size an ecosystem can support.

c)

A total list of the limiting factors.

d)

How much pain an organism can tolerate.

6.
What is the carrying capacity of the graph?
a)
around 500
b)
more than 500
c)
less than 500
d)
around 600
7.
What is the carrying capacity of the following graph?
a)
1000
b)
8000
c)
800
d)
600
8.

What will happen if all of the frogs in a population die?

a)

The frogs' predators will decrease and the frogs' prey will increase

b)

The frogs' predators will increase and the frogs' prey will decrease

c)

We better all pray because there isn't anymore frogs.

9.
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
10.
Food, water, sunlight, shelter, and space are resources that are  __________.
a)
limiting factors
b)
wet
c)
messy
d)
found in rocks
11.
Which of the following would INCREASE the carrying capacity of an ecosystem?
a)
increase in predators
b)
disease
c)
increase in available food
d)
drought
12.

A scientist was studying a population of fish in a pond over a period of 10 years. He observed that

the population increased each year for 3 years, and then remained nearly constant for the rest of

the study. The best explanation for this observation is that the population had

a)

stopped reproducing

b)

reached carrying capacity

c)

mutated into a different species

d)

run out of food and all died

13.

Which limiting factor would increase due to the number of individuals in a population (aka; density-dependent)?

a)

Unusual weather

b)

Natural disaster

c)

Disease

14.
Which limiting factor is density independent?
a)
competition
b)
disease
c)
natural disasters
15.
If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?
a)
The bird population would stay the same
b)
The bird population would infinitely increase
c)
The bird population would decrease
16.

Something that regulates the size of a population is called...

a)

a limiting measure

b)

a limiting factor

c)

carrying capacity

d)

biodiversity

17.
Limiting factors are sometimes helpful because they can keep the population from getting to large.
a)
True
b)
False
18.
In a forest ecosystem, which of the following is the best example of a limiting factor for a rabbit population?
a)
Squirrel Population
b)
Sunlight
c)
Grass available
19.
This may cause the population of a certain species to decrease.
a)
increase in competition for food
b)
increase of number of predators
c)
introduction of a disease
d)
all of these
20.
For the most part, the size of a population depends on _____________.
a)
available resources
b)
food supply
c)
ability to feed offspring
d)
all of these
21.
When a specific population grows past the ecosystem's carrying capacity, what happens to the population?
a)
Density Independent limiting factors start to occur resulting in the population going farther above carrying capacity.
b)
Density Dependent limiting factors start to occur resulting in the population going back below carrying capacity.
c)
The population will go extinct due to lack of resources
d)
The population grows then finds a new carrying capacity
22.
The total number of individuals a habitat can survive with the resources it has available.
a)
Carrying capacity
b)
Limiting factors
c)
Resources
d)
Population
23.
Excessive amounts of rain caused a flood in the southwest United States that resulted in substantial amounts of deaths in the rabbit population? This situation is an example of a density _____________ limiting factor.
a)
density-independent
b)
density-dependent
c)
density- too high
d)
density- too low
24.

Natural disasters can be considered limiting factors.

a)

true: density independent limiting factors

b)

false; natural disasters are not limiting factors

c)

true: density dependent limiting factors

d)

false: because Mrs. Schaffer said

25.
Limiting factors which impact the size of a population no matter how large that population is.
a)
Density Independent Limiting Factors
b)
Density Dependent Limiting Factors
c)
Carrying Capacity
d)
Exponential Growth
26.
An environmental factor such as storms and extreme heat or cold that decrease a population are considered to be. 
a)
density- dependent factor
b)
population density
c)
dispersion
d)
density- independent factor
27.

A lion and a cheetah attempt to occupy the same niche. The more aggressive lion survives; the cheetah does not.

a)

Density-Dependent: Competition

b)

Density-Independent: Competition

c)

Density-Dependent: Predator-Prey

d)

Density-Independent: Predator-Prey

28.

A severe frost wipes out 50% of the coffee crop in Brazil.

a)

Density-Dependent

b)

Density-Independent

29.

Due to severe overcrowding in an Asian village, many children do not survive to reach adulthood.

a)

Density-Dependent: Disease

b)

Density-Independent: Disease

30.

Since lynx prey on hares, an increase in the hare population causes an increase in the lynx population.

a)

Density-Dependent: Competition

b)

Density-Independent: Competition

c)

Density-Dependent: Predator-Prey

d)

Density-Independent: Predator-Prey

31.

A severe flood in the Red River Valley causes a decline in the deer population.

a)

Density-Dependent

b)

Density-Independent

32.

Due to stress, large numbers of female lemmings miscarry their young and fail to reproduce.

a)

Density-Dependent

b)

Density-Independent

33.

Travelers who visit a crowded African village become infected with a disease caused by parasites.

a)

Density-Dependent

b)

Density-Independent

34.

Many fish die due to a change in the winds and the appearance of the El Nino ocean current off the coast of Peru and Chile.

a)

Density-Dependent

b)

Density-Independent

35.

Fish on a coral reef stake out their territory and chase away any younger fish that try to live there.

a)

Density-Dependent

b)

Density-Independent

36.

An extensive drought in the Serengeti Plain threatens wildebeest, giraffe, zebra, and springbok populations.

a)

Density-Dependent

b)

Density-Independent

37.

All of the individuals of a species in an area.

a)

Population

b)

Carrying Capacity

c)

Limiting Factors

38.

Where on the graph has the population reached its carrying capacity?

a)

A to B

b)

B to C

c)

A to C

39.

Where on the graph have the limiting factors began to affect the the population growth?

a)

A

b)

B

c)

C

40.

Where on the graph does the population experience exponential growth?

a)

A to B

b)

B to C

c)

A to C