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WorksheetsPopulations and Resources Chapter 3
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
What is a molecule that organisms can use to release the energy they need to survive?
a)
an energy storage molecule
b)
a water storage molecule
c)
an internal storage molecule
2.
A model that shows what eats what in an ecosystem is a _______________.
a)
Food Energy Model
b)
Food Storage Chart
c)
Food Web
3.
What is an indirect effect?
a)
the result of one cause stopping a desired effect
b)
when there is a direct relationship between one organism and the next
c)
the result of one cause leading to an effect that causes one or more other effects
4.
What is it called when two or more populations use the same resource?
a)
Consumer
b)
Indirect effect
c)
Competition
5.
True or False? Consumer populations eat Resource populations to get the energy they need to reproduce.
a)
True
b)
False
6.
If the consumer population decreases, then the resource population will __________.
a)
Increase
b)
Decrease
c)
Stay Stable
7.
Opossums and foxes eat rats. Which organisms are in competition?
a)
Opossums and rats
b)
Foxes and opossums
c)
Rats and foxes
8.
In the northwestern United States, both coyotes and wolves eat deer. The sizes of the populations have been stable for the last 6 years, but recently the size of the wolf population increased. What will likely happen to the coyote population? The size of the coyote population will . . .
a)
The coyote population will increase
b)
The coyote population will decrease
c)
The coyote population will stay stable
9.
In a rainforest, both spiders and frogs eat flies. The sizes of the populations have been stable for the last 10 years, but recently the size of the frog population decreased. What will likely happen to the spider population?
a)
The spider population will increase
b)
The spider population will decrease
c)
The spider population will stay stable
10.
How would a decrease in the eagle population affect the bear population?
a)
The bear population would decrease
b)
The bear population would increase
c)
The bear population would remain stable
11.
How would a decrease in the eagle population affect the trout population?
a)
The trout population would decrease
b)
The trout population would increase
c)
The trout population would remain stable
12.
How would an increase to the opossum population affect the fox population?
a)
The fox population would increase.
b)
The fox population would decrease.
c)
The fox population would stay the same.
13.
What vocabulary word would you use to describe the relationship between the moon jelly and the walleye pollock?
a)
consumer population
b)
competition
c)
resource population
14.
What vocabulary word would you use to describe what the moon jelly is for the zooplankton?
a)
consumer population
b)
competition
c)
resource population
d)
indirect effect
15.
What vocabulary word would you use to describe what the zooplankton is to the moon jelly?
a)
consumer population
b)
competition
c)
resource population
d)
indirect effect
16.
What vocabulary word would you use to describe what the algae is to the moon jelly?
a)
consumer population
b)
competition
c)
resource population
d)
indirect effect
17.
Choose a claim: What could've caused the moon jelly population to increase? (Think of the evidence cards from Ch.3)
a)
A change to the Kelp population caused the Moon Jelly population to increase.
b)
A change to the Algae or Walleye Pollock population caused the Moon Jelly population to increase.
c)
A change to the Sea Urchin and Orca population caused the Moon Jelly population to increase.
18.
Choose all the pieces of evidence to support your claim: "What could've caused the moon jelly population to increase?" (Think of the evidence cards from Ch.3)
a)
Zooplankton population increased
b)
Walleye Pollock population decreased
c)
Algae population increased
d)
Zooplankton population decreased
e)
Sea Turtle population increased
19.
Choose the first reason to support your evidence.
a)
If the resource population increases then the consumer population will also increase.
b)
If the predator population increases then the resource population will also increase.
c)
If the consumer population increases then the resource population will decrease.
d)
If the producer population increases then the consumer population will decrease.
20.
Choose second reason to support your evidence.
a)
If the resource population decreases then the consumer population will increase.
b)
If the competing population decreases then the resource population will increase.
c)
If the consumer population increases then the resource population will stay stable
d)
If the predator population increases then the consumer population will stay stable.
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