Lesson 3 - Phylogeny

Question 1

Phylogeny

Answer 1

Evolutionary relationships between organisms

Question 2

Phylogenetics

Answer 2

The study of evolutionary histories

Question 3

Phylogenetic tree

Answer 3

Evolutionary tree
- Diagram used to represent the evolutionary relationships between organisms
- Branched diagrams to show that different species have evolved from a common ancestor.

Question 4

How are phylogenetic trees created?

Answer 4

• Anatomical characteristics
• Behavioural characteristics
• Genetic makeup

Evidence collected from fossils

Question 5

Advantages of phylogeny:

Answer 5

• It can be used to prove classification of organisms.
• Continuous tree whereas classification requires taxonomical groups.
• Linnean classification system implies that different groups of the same rank are equivalent. However, phylogeny maps time.