4 Genetics - Classification Flashcards
(10 cards)
1
Q
Who came up with the classification system?
A
Carl linneaus
2
Q
Why do we classify organisms?
A
- makes identification of organisms easier
- predicts characteristics
- identifies evolutionary links
3
Q
Bimomialism
A
‘Genus’ ‘species’
4
Q
What is taxonomy?
A
A hierarchal grouping system where each group is subdivided into smaller groups
5
Q
What is phylogeny?
A
The evolutionary relationship between organisms
6
Q
What are some examples of courtship behaviour?
A
- Hormones = pheromones in deer
- Sound = bird songs
- Visual displays = sand display in pufferfish, feathers in peacocks
- Building nests/ shelters = birds
7
Q
Why are courtship behaviours important?
A
Ensures sucessful reproduction, compatanility between organisms and makes sure they are the same species
8
Q
What are the different types of classification?
A
- Artificial = based on physical characteristics
- Phylogenetic = based on shared common ancestors, uses a hierarchy, Kingdom Phylum etc.
9
Q
What is the phylogenetic classification hierarchy?
A
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
10
Q
What are the 3 main domains?
A
Archea, Bacteria and Eukarya
