Free Printable Evidence for Evolution

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Evidence for Evolution

Total questions: 17

Worksheet time: 13mins

Name

Class

Date

The theory of evolution proposes...

All living things share one common ancestor

Humans used to be monkeys

More similar species have a more recent common ancestor

Aliens created dolphins and whales

The most recent ancestral form or species from which two different species evolved is known as ________________________.

a common ancestor.

an embryonic stage.

development.

evolution.

Common ancestry relates to evolution because

evolution only happens when there are common ancestors.

Common ancestors make evolution happen more quickly.

evolution can never take place with common ancestors.

the more two organisms have in common, the more recent is their common ancestor during their evolution.

Relative dating of rock layers tells us that the deeper we dig,

the younger the rocks get.

the simpler the rocks get.

the harder the rocks get.

the older the rocks get.

The diagram shows fossils in different rock layers. Which of these statements about the age of these fossils is most likely correct?

Fossil A and C are the same age

Fossil B is older than fossil C

Fossils A is older than fossil B

Fossil D is older than fossil C

Scientists find the remains of an animal that has been extinct for a long time. What type of evidence is this?

DNA analysis

Comparative anatomy

Fossil record

Analogous anatomy

What does the theory of continental drift state?

The continents were once joined in a super-continent and have moved over time

Continents are stationary and do not move

The Earth is broken into lithospheric plates that move due to convection currents

none of the above

Which evidence proves that continental drift separated the continents?

The shape of the continents

Similar fossils found on separate continents

All of the above

What is represented by the picture?

Sea-floor spreading

Pangea

How the continents are arranged today

Volcanoes

10.

_____________________are features present in modern organisms which are no longer in use.

DNA

Vestigial structures

Fossils

Homologous structures

11.

Which of the following is a vestigial structure humans have? (that has no use)

Elbows

Tailbone

Forearm bones

Hair

12.

Two organisms that are closely related would have

very similar DNA sequence

exactly the same DNA sequences

no proteins in common

completely different DNA sequence

13.

According to this data, the unknown bacterial species is most closely related to:

Species I

Species II

Species III

Species IV

14.

_____________ is the study of embryos to see how their similarities and differences indicate an evolutionary relationship.

Paleontology

Common ancestry

Homologous structure

Embryology

15.

In stage one (top row) of these embryos, most of the embryos________

look very similar.

have very different features.

show different stages of development.

have only a tail if they are non-human.

16.

In the the third embryonic stage (bottom row), mammal embryos _____

have more characteristics in common with each other than with reptiles or birds.

are still hard to tell from reptiles and birds.

have the same features as fish, reptiles, and birds.

do not have tails.

17.

The more similar the stages of embryonic development, the more likely that organisms share ____________

a common ancestor.

embryos.

eggs.

embryology.

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Evidence for Evolution

Total questions: 17

Worksheet time: 13mins

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