Define phylogeny. (1 mark)
The evolutionary relationships between organisms.
What is the study of the evolutionary history of groups of organisms called? (1 mark)
Phylogenetics
What do phylogenetic trees show? (1 mark)
That different species have evolved from a common ancestor.
Give two advantages of phylogeny. (2 marks)
Scientists are not forced to put organisms into a specific group if they do not quite fit.
Does not mislead in terms of length of history (like Linnean classification can).
How does classification use phylogeny? (1 mark)
To confirm the classification groups are correct or cause them to be changed.