Evolutionary relationships

Question 1

Phylogeny

Answer 1

The study of the evolutionary history of organisms - tells whos related + how closely related - this is shown on a phylogenetic tree - all organisms have evolved from shared common ancestors.

Question 2

Taxonomy

Answer 2

science of classification - names organisms + organising them into groups (grouping together related organisms) - takes into account phylogency + group organisms according to their evolutionary relationships.

Question 3

Taxa

Answer 3

the groups organisms are classified in - each group called a taxon.

Question 4

Groups are arranged in hierarchy..

Answer 4

Largest groups at the top and smallest at the bottom - organisms can belong to only one group at each level in the hierarchy (no overlap)

Question 5

Organisms first sorted into..

Answer 5

3 large groups - the domains - eukarya, Bacteria, Archaea - then related organisms in a domain then sorted into smaller groups called kingdoms.