Evidence of Evolution

Fill in the Blanks

Evolution is change over

.

Multiple Choice

Anaerobic means

• with oxygen

• without oxygen

Multiple Choice

Aerobic means

• with oxygen

• without oxygen

Multiple Choice

The cells that came first were simple _____ cells.

• prokaryotic

• eukaryotic

• muticellular

Multiple Choice

Over time these simple cells evolved to use oxygen then became more complex ________ cells.

• prokaryotic

• eukaryotic

• unicellular

Multiple Choice

The changes of species over time

• Embryonic 

• Natural selection 

• Mimicry 

• Evolution 

Multiple Choice

Which layer is the youngest

• 1

• 2

• 3

• 4

Multiple Choice

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

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

• Fossils show that some species have gone extinct

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

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

Multiple Choice

Some organisms that share a common ancestor have features that have different functions, but similar structures.  These are known as

• vestigial structures

• analogous structures

• homologous structures

• fossil structures

Multiple Choice

Vestigial structures

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

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

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

• preserved remains of an organism

Multiple Choice

Humans, birds, whales, and lizards all have similar arm bones. What is the reason for this?

• The function of these bones is the same in all animals

• They live in similar environments

• They have a common ancestor

• All organisms resemble humans

Multiple Choice

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

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

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

• The bones are homologous structures to the wings of butterflies.

• The bones are fossil structures from an extinct ancestor.

Multiple Choice

The diagram illustrates an embryonic stage of two organisms.

Which of the following can be determined by observing the embryos shown in the diagram

• The organisms share a common ancestry.

• The organisms belong to the same genus.

• The organisms are native to the same geographic areas.

• The organisms will grow into anatomically similar adults.

Multiple Choice

If two organisms have similar traits of DNA they are probably

• share a common ancestor

• share a common environment

• share a common population

• speciation

Multiple Choice

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

• Species I

• Species II

• Species III

• Species IV

Multiple Choice

The best evidence for evolution is

• fossils

• DNA

• homologous structures

• embryology