Free Printable EVOLUTION

Worksheets

EVOLUTION

Total questions: 17

Worksheet time: 34mins

Name

Class

Date

When organisms are better adapted to their environment they will survive and reproduce more successfully than organisms less adapted. This process is called what?

Selective breeding

Natural Selection

Cloning

Evolution of all species

Sometimes bones in the front limbs of animals are very similar in structure. What do we call similar bone structures that indicate a link to a common ancestor?

Adaptations

Gradualism

Homologous Structures

Extinction

What do we call a change in a species over time?

Adaptation

Evolution

Extinction

Environmental influences

Vertebrate embryos pass through similar stages of development is evidence for

use and disuse

homologous structures

common ancestry

acquired characteristics

Individuals that are well adapted to their environment will survive and produce

better traits

stronger genes

more offspring

fewer mutations

What type of evidence is shown in this picture?

Fossils

Homologous Structures

Vestigial Structures

DNA

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

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

Species I

Species II

Species III

Species IV

The table shows the survival rate of two types of beetles in the same environment over a period of three years.

Which statement about the beetles in this environment is best supported by the data?

Brown beetles have a shorter life cycle than green beetles have

Green beetles are more fit for their environment than brown beetles

brown beetles are undergo more unfavorable mutations than green beetles

10.

The green frog (Lithobates clamitans clamitans) is found in many parts of the United States. The table contains some information about this frog.
Why does the ability to lay 1,000 to 5,000 eggs increase the fitness of the species L. clamitans clamitans?

A. It increases the probability that some offspring will survive long enough to reproduce.

It increases the chance of the recombination of alleles, leading to genetic drift in the population.

A. It increases opportunities for offspring to compete for limited resources.

11.

Mutations are important because they bring about

death of the organism in which they develop

genetic variation needed for a population to evolve

benefits for the individual, not for the population

Hardey-Weinberg equilibrium within a population

12.

A trait or change in lifestyle that helps a plant or animal survive in its environment

adaptation

evolution

homologous

vestigial

13.

Darwin wrote that organisms with traits that are best suited to the environment will ________________

increase in number

become extinct

14.

Many different groups of organisms have wings, even though they do not share a recent common ancestor. This is because they evolved in environments with similar selective pressures. Wings are an example of a(n) ______________ structure.

vestigial

analogous

homologous

15.

The forelimbs of mammals have similar anatomy because these groups descended from a recent common ancestor. Their bone structure is an example of a(n) ______________ structure.

vestigial

analogous

homologous

16.

Survival of the Fittest and Evolution were proposed by what scientist?

Charles Darwin

Albert Einstein

Steven Hawking

Isaac Newton

17.

What is the advantage of having different shaped beaks?

To look different from other species.

To be able to eat the food readily available in the environment.

To protect itself against predators.

To protect itself against prey.

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EVOLUTION

Total questions: 17

Worksheet time: 34mins

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