6a- Theory of Evolution Review Lesson

Multiple Choice

What is the gradual change in species over time?

• Evolution

• Adaptation

• Natural Selection

Multiple Choice

Look at the picture. What would be an appropriate caption to explain evolution by natural selection?

• Genetic Variation

• Adaptation

• Natural Selection

• Traits are inherited

​the process of biological change by which descendants come to

differ from their ancestors.

Evolution

- Biological Evolution by Natural Selection

- defined evolution as "descent with modification"

- the idea that species change over time, give rise to new species, and share a common ancestor

Charles Darwin

• struck by the variation of traits among similar species

• Variation: difference in the physical traits of an individual from those of other individuals in the group to which it belongs.

​

​Darwin's Observations

• species found on one island looked different from those on nearby islands and nearest mainland

​

​Darwin's Observations

Multiple Choice

Why is the mouse population changing over time?

• The light mice can reproduce more successfully than the dark mice

• The hawks eat more dark mice than light mice because the dark mice taste better

• The hawks eat more light mice than dark mice because they can see the light mice more easily

• The hawks eat more dark mice than light mice because they can see the dark mice more easily

Multiple Choice

Which statement best describes the process of evolution?

• Populations can survive in different locations on earth

• Environmental conditions limit the number of species on Earth

• Populations grow when resources are abundant

• The traits of a species can change over time

Multiple Choice

What gave Charles Darwin the idea of evolution?

• Wikipedia

• Google

• Finches in the Galapagos Islands

• A book

Multiple Choice

Charles Darwin’s observation that finches of different species on the Galápagos Islands have many similar physical characteristics supports the hypothesis that these finches...

• have the ability to interbreed

• acquired traits through use and disuse.

• descended from a common ancestor.

• all eat the same type of food.

Natural Selection

• The process where organisms better adapted to their environment tend to survive and produce more offspring

• As random genetic mutations occur within an organism's genetic code, the beneficial mutations are preserved because they aid survival

Multiple Choice

Since the 1800s humans have stopped burning coal, and the trees have returned to their original color. Which moth will be more successful in this environment?

• Dark moth

• Light moth

• Neither will be successful

• Both will be successful

Multiple Choice

Why is the mouse population changing over time?

• The light mice can reproduce more successfully than the dark mice

• The hawks eat more dark mice than light mice because the dark mice taste better

• The hawks eat more light mice than dark mice because they can see the light mice more easily

• The hawks eat more dark mice than light mice because they can see the dark mice more easily

Theories of geologic change set the stage for Darwin’s theory.

Patterns that Describe Rate of Evolution

• Scientists have developed two patterns to describe the pace of evolution - gradualism and punctuated equilibrium

• Gradualism - pattern of evolution characterized by the slow and steady accumulation of small genetic changes over long periods of time

  • The fossil record contains examples of species as they go through these gradual changes

• Punctuated Equilibrium - pattern of evolution in which long stable periods are interrupted by brief periods of more rapid change

Multiple Select

Check all of the examples of catastrophism

• weathering

• erosion

• tornado

• volcanic eruption

• hurricane

Multiple Choice

________________ states that the Earth has gone through short, sudden, and worldwide events which cause large scale disruptions.

• Uniformitarianism

• Catastrophism

• Gradualism

• Law of Superposition

Multiple Choice

________________ states that the Earth has gone through slow continuous changes. ex. erosion, continental drift, 

• Uniformitarianism

• Catastrophism

• Gradualism

• Law of Superposition

Multiple Choice

A river continues to deepen and erode a canyon at a rate of a few milimeters per year. What geologic principle is this an example of?

• geographism

• catastrophism

• uniformitarianism

• gradualism

Multiple Choice

Describes a patter of long, stable periods interrupted by brief periods of more rapid change

• convergent evolution

• coevolution

• punctuated equilibrium

• adaptive radiation

Multiple Choice

The hypothesis that evolution of a species occurs gradually over time as a slow and constant process is known as

• speciation

• punctuated equilibrium

• gradualism

• microevolution

Multiple Choice

The hypothesis that evolution of a species occurs in periods of rapid change separated by periods of little or no change is called

• divergence

• gradualism

• punctuated equilibrium

• isolation