Unit 7.1: Evidence for Evolution Notes

Multiple Choice

How do fossils provide evidence that evolution has happened on Earth?

Read each answer choice carefully and select the best one!

• Fossils show how the sizes of certain animals has changed drastically over millions of years

• Different sedimentary rock layers provide evidence for how the environment has changed over time

• Fossils show that some species have gone extinct

• Fossils show how life forms present today are different than those from the past

Multiple Choice

Look at the diagram. Which fossils are the oldest, and why?

• The fossils in layer 6 are the oldest because they are closest to the top

• The fossils in layer 5 are the oldest because they are closest to the top

• The fossils in layer 1 are the oldest because they are closest to the bottom

• They are all the same age because they are all in the same type of rock

​Stasis: Long periods of time with little to no change

Multiple Choice

What is slow change in a species over a long period of time called?

• Phylogeny

• Stasis

• Gradualism

• Punctuated equilibrium

Multiple Choice

In the butterfly diagram, side "B" represents which model of evolution?

• Gradualism

• Punctuated equilibrium

• Selection

• Adaptive

Multiple Choice

Species showing very little evolutionary change in the fossil record is called...

• Natural Selection

• Artificial Selection

• Stasis

• Darwinism

Multiple Choice

Structures with the same parts that may have different functions but suggest that organisms have common ancestry are called...

• homologous structures

• adaptive radiation

• fossils

• vestigial structures

Multiple Choice

The similarities of bone structures in this diagram provide evidence to support which of the following?

• All vertebrate species have identical forelimbs.

• The organisms have the same DNA.

• The organisms evolved from a common ancestor.

• The organisms probably use their forelimbs for the same function.

Multiple Choice

The human appendix, which is not needed to survive, is considered to be a...

• analogous structure

• vestigial structure

• homology

• homologous structure

Multiple Choice

What type of structure does this image illustrate?

• homologous structures

• vestigial structures

• analogous structures

Multiple Choice

Various species showing similar developmental patterns as embryos is known as...

• anatomical/structural homology

• embryology/developmental homology

• DNA similarity

• all of the above

Multiple Choice

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

• have very different features

• look very similar

• show different stages of development

• have only a tail if they are non-human

Multiple Choice

Why are similar fossils found all over the world?

• The land masses were once connected

• They are not similar fossils

• The organisms were transported to different areas of the world

• The animals swam to new parts of the world before going extinct

Multiple Select

How does the Theory of Continental Drift and the existence of supercontinents such as Pangaea support the Theory of Evolution? Select TWO.

• It provides an explanation for why similar fossils are found on different continents

• Continental drift (the movement of continents) provides an example of a big change in environment that would cause evolutionary pressures, driving species to evolve

• It explains how the planet became warmer over the years

• It provides evidence that continents are slowly growing in size

Multiple Choice

This chart shows different species and their DNA sequences. Using the chart, which two species are the most closely related?

• the red panda and the raccoon

• the giant panda and the red panda

• the American black bear and the giant panda

• the giant panda and the raccoon