wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Evolution Unit Review

Total questions: 44

Worksheet time: 41mins

Name
Class
Date
1.
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

2.
These moths are all the same species. The differences between their wings is an example of ________________
a)

Natural Selection

b)

Variation

c)

Homeostasis

d)

Extinction

3.

Which of the following best describes what the image represents?

a)

Genetic Drift

b)

Migration

c)

Mutation

d)

Natural Selection

4.

Which scientist is considered the father of evolution?

a)

Jean-Baptist Lamarck

b)

Hershey and Chase

c)

Charles Darwin

d)

Carleous Linnaeus

5.

Evolution is the result of a process called ____________

a)

Natural Selection

b)

Artificial Selection

c)

Survival of the Weakest

d)

Supernatural Selection

6.
What does the term species mean?
a)

All the different organisms in a population

b)

A community of organisms.

c)

Organisms of the same kind that can reproduce with one another and create fertile young.

d)

Organisms of different kinds that can reproduce with one another.

7.
Which of the following variations would help members of a rabbit population survive if the climate turned very hot?
a)
Thinner fur
b)
Ability to run faster
c)
Ability to jump higher
d)
Ability to eat more
8.
Animals are able to pick and choose their adaptations.
a)
True
b)
False
9.

Adaptations can be:

a)

camouflage

b)

ability to survive cold weather

c)

hunting skills

d)

all of the above

10.

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.

11.

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

a)

light fish

b)

dark fish

12.

In the image, which cricket has the best adaptations and highest fitness for this environment?

a)

Orange cricket

b)

Green cricket

c)

Purple cricket

d)

Yellow cricket

13.

Which thing is NOT true about "Survival of the Fittest"?

a)

The strongest, fastest, smartest, etc. will always survive and reproduce

b)

Organisms that have adaptations for their environment

are the most fit

c)

Species most responsive to change have high evolutionarily fitness

d)

In evolutionary terms, fittest means an organism is best suited to its environment

14.

Reindeer from a rancher in Alaska escape from their pen during an enormous snow storm. After their escape, they mate with wild caribou that are migrating across the land. The offspring of these have traits for short legs and have tame behavior.

a)

Gene Flow

b)

Genetic Drift

c)

Non-Random Mating

d)

Natural Selection

15.

Males of the bighorn sheep species fight one another to show females who is the dominant male and are more likely to mate with females.

a)

Natural Selection

b)

Mutation

c)

Genetic Drift

d)

Non-Random Mating

16.

During a hurricane, a population of beetles almost gets completely wiped out. The only beetles that survived were lucky that they were in their nest at the time of the hurricane and had enough food to survive.

a)

Natural selection

b)

Genetic Drift

c)

Gene Flow

d)

Non-Random Mating

17.

Insects become resistant to pesticides very quickly, sometime in one generation. If an insect is resistant to the chemical, most of the offspring will also be resistant. Considering that insect generations can be a matter of weeks, insects in an area can become immune to a chemical within months.

a)

Mutation

b)

Natural Selection

c)

Genetic Drift

d)

Gene Flow

18.

A chemical spill causes a genetic change in the offspring of ladybugs to have blue dots instead of black dots.

a)

Natural Selection

b)

Genetic Drift

c)

Mutation

d)

Gene Flow

19.

A certain type of plant can produce blue or yellow flowers. During a fire, many yellow flowers are destroyed and now since blue is the dominant trait, the plant reproduces offspring that produce only blue flowers.

a)

Non-Random Mating

b)

Gene Flow

c)

Mutation

d)

Genetic Drift

20.

This is one of the mechanisms of evolution; it is a continuous process in which organisms with traits that make them better-adapted to their environment are more likely to survive and reproduce than organisms without such adaptations

a)

Directional selection

b)

Microevolution

c)

Gene flow / genetic drift

d)

Natural selection

21.

This is the process that ultimately creates new variations and changes in DNA; leads to the creation of new alleles

a)

Mutation

b)

Microevolution

c)

Natural selection

d)

Gene flow / genetic drift

22.

A drastic reduction in the size of a population that can change allele frequencies is called

a)

the bottleneck effect

b)

the founder effect

c)

the gene flow effect

d)

the Thanos effect

23.

The Amish have a higher frequency of polydactyly (extra fingers) in their community than the general population. This is due to the allele for extra fingers being present in the group that started the Amish community.

a)

The difference in allele frequency is due to genetic flow.

b)

The difference in allele frequency is due to the founder effect.

c)

The difference in allele frequency is due to a bottleneck.

d)

The difference in allele frequency is due to speciation.

24.

If you take antibiotics only the resistant bacteria survive and the non-resistant bacteria die. This is an example of...

a)

Resistance

b)

Survival of the fittest

c)

How antibiotics work

25.
A  population of cockroaches was sprayed with an insecticide.  Some cockroaches survived and produced a population of cockroaches that was resistant to this spray.  What can BEST be inferred from this example?
a)
species will adapt no matter what the environment
b)
environment has no effect on the survival of an organism
c)
Individuals with favorable variations survive and reproduce
d)
Insecticides cause mutations that are passed on to the next generation
26.
The term for the formation of new and distinct species over the course of evolution is...
a)
speciation
b)
biological species concept
c)
reproductive barrier
d)
natural selection
27.
A flash flood carried a raft of Amazon ants away from their original population. There is enough distance between the two groups, that they will never meet in nature again. What type of reproductive barrier is this?
a)

behavioral isolation

b)

temporal isolation 

c)

gametic isolation

d)

geographic isolation 

28.
When a population becomes divided by an event such as a new river forming, ____________ has occurred.
a)
Differentiation 
b)
Isolation
c)
Adaptation
d)
Separation
29.

When the Grand Canyon in Arizona formed, two populations of one squirrel species were separated by the giant canyon. This is an example of _____________.

a)

Temporal isolation

b)

Behavioral isolation

c)

Geographic isolation

30.
What is genetic drift?
a)
The movement of genes in/out of a population
b)
A small, random change in the DNA
c)

Any chance event that causes a change in the gene pool by taking out a large part of a population

d)
›The process in which humans select for or against particular features in organisms
31.

Someone steps on some bugs and randomly removes their alleles from the population. This is an example of

a)

gene flow

b)

genetic drift

c)

speciation

d)

allele frequency

32.
Structures with the same parts have different functions; suggests that organisms share a common ancestry
a)
vestigial structures
b)
homologous structures
c)
adaptive radiation
d)
fossil
33.
Study of embryos of various organisms to show a common ancestor because of similarities in development
a)
natural selection
b)
embryology
c)
speciation
d)
evolution
34.
Some organisms that share a common ancestor have features that have different functions, but similar structures.  These are known as
a)
vestigial structures
b)
analogous structures
c)
homologous structures
d)
fossil structures
35.
How do fossils provide evidence that evolution has happened on Earth?
a)
Fossils show how the sizes of certain animals has changed drastically over millions of years
b)
Fossils show that some species have gone extinct
c)
Fossils show how life forms present today are different than those from the past
d)
Different sedimentary rock layers provide evidence for how the environment has changed over time
36.

Vestigial structures

a)

structures that perform a similar function but are not similar in origin

b)

remnants of once-important structures that have slowly lost all or most of their function

c)

features found in different organisms that share structural similarities but may have very different functions

d)

preserved remains of an organism

37.

What is this an example of?

a)

Homologous structure

b)

Analogous structure

c)

Vestigial organs

d)

Functional adaption

38.

What best describes the hind leg bones seen in the whale?

a)

The bones are analogous structures to the fins of living fish.

b)

The bones are vestigial structures that had a function in an ancestor.

c)

The bones are homologous structures to the wings of butterflies.

d)

The bones are fossil structures from an extinct ancestor.

39.

Match the following

a)

Analogous Structure

1.

Same function different structure

b)

Homologous Structure

2.

Same structure different function

c)

Comparative Embryology

3.

Comparing embryological development of different species

d)

Genetic Sequencing

4.

Comparing DNA and amino acid sequences of different species

e)

Vestigial Structures

5.

Structures in the body of an organism that no longer work.

40.
Which of the following is a physical adaptation for the underlined animal?
a)
A snake unhinges its jaw to eat a rabbit it just caught.
b)
A hognose snake rolls over, slows its breathing, and hangs its tongue out to pretend to be dead.
c)
A herd of buffalo encircle their young to protect them from a pack of wolves.
d)
A dung beetle rolls a piece of dung across the desert.
41.
How do adaptations help animals?
a)
to hide from predators
b)
to hunt for food
c)
to survive in their habitats
d)
All of these are correct
42.
An animal's color or pattern that helps it blend into its surroundings
a)
Environment 
b)
Mimicry
c)
Camouflage
d)
Habitat
43.
A scientist puts 100 houseflies in a sealed container; then sprays an insecticide into the container.  Ninety-six of the flies die.  Four survive.  The scientist lets the survivors mate and produce offspring, then repeats the experiment with 100 offspring.  Fifty-six of them survive the spray.  This experimental result is evidence of – 
a)
adaptive radiation 
b)
speciation
c)
natural selection
d)
extinction
44.
What genetic change allows organisms to survive natural selection in their environments? 
a)
learned behavior
b)
acquired traits
c)
analogies
d)
adaptations