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Natural Selection

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Adaptations can be:

a)

camouflage

b)

ability to survive cold weather

c)

hunting skills

d)

all of the above

2.

Natural selection occurs during the lifetime of a single organism.

a)

True

b)

False

3.

What is most likely to happen to moth populations in the picture shown?

a)

Light moths--hunted easily, dark moths--population increase

b)

Dark moths--hunted easily, dark moths--population increase

c)

Light moths--hunted easily, light moths--population increase

d)

Lights moths will change their color to match dark moths.

4.

TRUE or FALSE: Natural selection will still occur if individuals are exactly the same.

a)

TRUE

b)

FALSE

5.

How do you "win" at natural selection?

a)

survive

b)

go extinct

c)

survive & reproduce

6.

Due to pollution, a pond becomes darker over time. Which trait variation became more common?

a)

light fish

b)

dark fish

7.
Where the better adapted organisms survive to pass traits along to offspring.
a)
Evolution
b)
Natural Selection
c)
Extinction
d)
Artifical Selection
8.
Why are advantageous traits more likely to be passed onto offspring?
a)
Because they are more likely to survive and reproduce.
b)
Because they come from dominant alleles.
c)
Because they come from recessive alleles.
d)
Because the trait is an acquired phenotype.
9.

According to natural selection, light colored tree trunks would favor

a)

light colored moths

b)

dark colored moths

c)

red colored moths

d)

red and light colored moths

10.

Natural Selection is driven by a change in the environment and survival of the

a)

Earth

b)

Fastest

c)

Fittest

d)

Biggest

11.

Change in a population over time that descend from a common ancestor.

a)

Natural Selection

b)

Selective Breeding

c)

Homeostasis

d)

Evolution

12.
Why is the mouse population changing over time?
a)
The light mice can reproduce more successfully than the dark mice
b)
The hawks eat more dark mice than light mice because the dark mice taste better
c)
The hawks eat more light mice than dark mice because they can see the light mice more easily
d)
The hawks eat more dark mice than light mice because they can see the dark mice more easily
13.
Most organisms have more offspring than will survive 
a)
True
b)
False
14.
Definition: adaptation
a)
inherited characteristic that increases chances of survival
b)
organisms with traits well suited to their environment survive and reproduce at a greater rate
c)
a growing population causes a scarcity of resources
d)
differences in the DNA sequence
15.
Definition: fitness
a)
ability to survive and reproduce in a specific environment
b)
organisms with traits well suited to their environment survive and reproduce at a greater rate
c)
a growing population causes a scarcity of resources
d)
differences in the DNA sequence

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