10.3 Phylogeny Flashcards
1
Q
Define phylogeny. (1 mark)
A
The evolutionary relationships between organisms.
2
Q
What is the study of the evolutionary history of groups of organisms called? (1 mark)
A
Phylogenetics
3
Q
What do phylogenetic trees show? (1 mark)
A
That different species have evolved from a common ancestor.
4
Q
Give two advantages of phylogeny. (2 marks)
A
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).
5
Q
How does classification use phylogeny? (1 mark)
A
To confirm the classification groups are correct or cause them to be changed.
