Activity #1-4b

Question 1

Differentiate analogy from homology. Give an example of each aside from what
was performed in this activity.

Answer 1

1. Analogy is the development of similar traits and functions. However, not of similar evolutionary origins.
2. Homology is where structures share similar embryonic origins.

Question 2

State and explain briefly the five evidences of evolution.

Answer 2

1. Fossil Record
2. Anatomical Record
3. Molecular Record
4. Artificial Selection
5. Biogeography

Question 3

Explain how homologies can be revealed in the context of evolution.

Answer 3

If two or more species share a unique physical feature, such as a complex bone structure or a body plan, they may all have inherited this feature from a common ancestor. Physical features shared due to evolutionary history (a common ancestor) are said to be homologous.

Question 4

Does homology provide evidence of evolutionary naturalism?

Answer 4

Yes, homology proves an embryonic shared trait between species. This means that the species arose from a common ancestor.

Question 5

What is Chromatography?

Answer 5

It is an ANALYTICAL TECHNIQUE commonly used to separate a mixture of chemicals into individual components.

Question 6

Differentiate Stationary phase from Mobile Phase.

Answer 6

Stationary phase is the substance that stays fixed inside the column.

Mobile phase is the solvent moving through a column.

Question 7

Lichens used in Activity 2?

Answer 7

Parmotrema spp.
Parmellinella sp.
Usnea spp.

Question 8

Explain the point of Biochemicals as evidence of Evolution.

Answer 8

One class of biochemical evidence of evolution, homologous molecules, is biochemicals that are very similar in structure and function in all organisms. It can show if a species is related or not based on the presence of molecular similarities.