wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Quizizz-Predator-Prey Graph

Total questions: 17

Worksheet time: 36mins

Name
Class
Date
1.

As the population of prey decreases, the population of the predator which eats it will...

a)

Increase

b)

Decrease

c)

Remain Constant

2.
When predator numbers decrease, prey numbers ____________ because fewer of them are being consumed.
a)
decrease
b)
increase
c)
stay the same
d)
divide in half
3.
If there is more food than usual in an ecosystem, then the population will mostly likely...
a)
stay the same
b)
decrease
c)
increase
d)
reach carrying capacity
4.

According to the graph, what is causing the deer population to decrease

a)

They got sick

b)

The wolf population is decreasing

c)

The wolf population increased

d)

They ran out of food

5.

Click on the picture of the graph. What is this graph showing?

a)

Lynx and hare populations over time

b)

Lynx and hare captures over time

c)

Lynx and hare offspring over time

d)

Lynx and hare speed over time

6.

Which population typically increases first? Hint: look at the key to determine the color of the line, then determine which line increases first.

a)

The Canadian lynx population

b)

The snowshoe hare population

7.

Snowshoe hare populations typically increase first. Choose the statement that would BEST explain why.

a)

The snowshoe hares increase when more Canadian lynx prey on them

b)

The snowshoe hares increase because more plants grow in the summer for them to eat

c)

The snow shoe hares increase because they cannot survive the harsh winters

8.

Which pattern is found in the graph?

a)

The populations do not show a similar pattern

b)

The populations cycle opposite of each other about every 10 years. When one increases, the other decreases

c)

The populations cycle with each other about every 10 years. When one increases, the other also increases

9.

At the end of the graph, the Canadian lynx population starts to decline. What do you predict will happen to the snowshoe hare population following the decline of their predator?

a)

The snowshoe hare population will most likely increase.

b)

The snowshoe hare population will most likely decrease.

10.

What does the yellow line represent?

a)

exponential growth

b)

logistic growth

c)

carrying capacity

d)

none of the above

11.

What is the greatest moose population?

a)

2000

b)

1500

c)

50

d)

2500

12.

What year is the wolf population the highest?

a)

2500

b)

50

c)

1980

d)

1996

13.

What would happen to the moose population if wolves were removed?

a)

remain the same

b)

moose population would increase

c)

moose population would decrease

14.

Identify factors that would influence the moose population?

a)

wolf population

b)

tick infestation

c)

mild winters

d)

abundant winter forage

15.

 What was the approximate population of lynx in 1865?

a)

4

b)

5

c)

6

d)

5,000

e)

6,000

16.
The graph above shows the variation in the deer population in the Kaibab Plateau from 1905 to 1939. Between 1907 and 1923, the natural predators of deer were eliminated from the area by hunters. What was the most likely reason for the decline in the deer population after 1924?
a)
The deer stopped competing for resources because they had no predators.
b)
The increased number of deer led to increased competition for resources.
c)
A large number of deer left the region in search of new predators.
d)
The removal of predators caused fewer resources to be available to the deer.
17.

What was the approximate population of snowshoe hares in 1865?

a)

60

b)

160

c)

60,000

d)

160,000

e)

No way to tell