phylogenetic trees - unit 4 AOS 2

Question 1

phylogenetic trees

Answer 1

• A phylogenetic tree is a diagram that shows the evolutionary relationships between
  different species.

Question 2

lineage

Answer 2

•  a direct sequence of species that evolved from a
  common ancestor

Question 3

taxon

Answer 3

- a unit of biological classification into which related
organisms are classified. Taxa are arranged in a hierarchical rank from kingdom down to species,
where members of a specific taxon typically share certain morphological characteristics

Question 4

components of a phylogenetic tress

Answer 4

root: A line at the origin, representing the earliest common ancestor

branch: each line of the tree

node: A point where the branches split from each other, representing a divergence between
those two taxa

Leaf: The end of a branch, representing where the present-day or extinct species are found. They are labelled with the species or taxa name