Biology - Unit 2 - Evidence of Evolution

Biology - Unit 2 - Evidence of Evolution

Review

Multiple Choice

These structures are examples of __________ structures.

• Homologous

• Analogous

• Vestigial

Homologous Structures

Have the same structure but different function.

Multiple Choice

These structures are examples of __________ structures.

• Homologous

• Analogous

• Vestigial

Analogous Structures

Have the different structure but same function.

Multiple Choice

These structures are examples of __________ structures.

• Homologous

• Analogous

• Vestigial

Vestigial Structures

Are remnants (remaining parts) that were important in the organism’s ancestors, but are no longer used in the same way.

Multiple Select

The image shows an example of _________ evolution.

• convergent

• divergent

• neither

Divergent Evolution

The process where groups from a COMMON ancestor evolve and accumulate DIFFERENCES, resulting in the formation of new species. 

Multiple Select

The image shows an example of _________ evolution.

• convergent

• divergent

• neither

Convergent Evolution

The process where organisms NOT CLOSELY related, independently evolve SIMILAR traits as a result of having to adapt to similar environments.

Multiple Choice

According to the model, which of the following are humans more CLOSELY related?

• Gorillas

• Orangutans

• Chimpanzees

Phylogenetic Tree

You can see in the model that the Human is more closely related to the Chimp, versus being less closely related to the Orangutan.

Multiple Choice

According to the model, which of the following is NOT a descendant of the organism identified (red circle).

• Bonobos

• Humans

• Gorillas

Phylogenetic Tree

The Humans, Chimps, and Bonobos are all descendants of the organism marked with the red circle. The Gorillas and Orangutans are NOT.

Phylogenetic Tree

You can see that the dog diverges at 65 MYA to its own line, different from the pig, cattle, and horse.

Multiple Choice

According to the Model, which two organisms are most closely related?

• E & F

• B & C

• C & D

Amino Acid Sequencing

B and C have zero differences in amino acids, so they are most closely related.

Amino Acid Sequencing

B and C have zero differences in their Amino Acid sequencing so they are MORE closely related.

Open Ended

Using the model of amino acid sequencing, make a claim stating which organisms are the least closely related.

Claim

Your claim might read like this "Organism E and F are the least closely related".

Open Ended

Using the model of amino acid sequencing, Provide one piece of evidence supporting the claim that "Organism E and F are the least closely related".

Evidence

Your evidence might read like this "Organism E and F have 9 differences in their amino acid sequencing, which is the most in the table, supporting that they are the least closely related".