Topic 4—C: Diversity and Classification- 1. Classification of organisms Flashcards
1
Q
what is phylogeny?
A
it’s the study of the evolutionary history of groups of organisms
2
Q
what does phylogeny tell us?
A
who’s related to whom and how closely related they are
3
Q
what is taxonomy?
A
- it’s the science of classification
- it involves naming organisms and organising them into groups
according to there evolutionary relationships
4
Q
what is the 8 level taxa
A
domain
kingdom
phylum
class
order
family
Genus
species
they are arranged in hierarchy (largest- smallest)
there is no overlap so organisms can only belong to one group at each level in the hierarchy
5
Q
species (definition)
A
organisms of the same species can reproduce to make fertile offspring
6
Q
what happens when you move down the hierarchy?
A
there are more groups at each level but fewer organisms in each group
7
Q
what is the binomial system?
A
all organisms are given one internationally accepted scientific name in latin that has 2 parts
