phylogeny

Question 1

define phylogeny

Answer 1

the classification of organisms based on evolutionary relationships

Question 2

what evidence is used for phylogenetics

Answer 2

modern animals and fossils
- study genetics and physical characteristics

Question 3

what do phylogenetic trees show?

Answer 3

different species evolving from a common ancestor

Question 4

what are advantages of phylogeny?

Answer 4

• produces a continuous tree instead of discrete taxonomical groups
• considers evolutionary relationships that might not be obvious by just looking at
  characteristics
• not hierarchical so different groups are represented according to their evolutionary position so can be compared

Question 5

what is the main difference between early classification systems and phylogeny?

Answer 5

phylogeny is based on evolutionary relationships rather than physical observations