Lesson 1 - Classification Flashcards
Taxonomic groups
Seven groups ordered in hierarchy.
- Kingdom
- Phylum
- Class
- Order
- Family
- Genus
- Species
Carl Linnaeus
The first to propose a hierarchal system for classification.
Early 18th century Swedish botanist
What amendments have been made to the classification hierarchal system?
- Domain added
Placed at the top of the hierarchy.
What was the first comprehensive study of animals?
350 BC: Aristotle compiles his book ‘A history of animals’, the first comprehensive study of animals.
Who created a 4 volume encyclopaedia of the then-known animal world, consisting of 4500 pages?
1551 - Konrad Gesner (a Swiss botanist)
When was the 10th edition of Carl Linnaeus’ book published? Called? About?
- 1758
- Systema Naturae
- Considered the starting point of binomial nomenclature.
Who proposed protostista (third kingdom)?
- Ernest Harckel (German biologist and naturalist)
- 1866
When was the 5 kingdom system proposed and by who?
1969
Robert Whittaker
What were the initial 5 kingdoms?
- Prokaryotae
- Protoctista
- Fungi
- Plantae
- Animalia
Who proposed the 6 kingdom classification model?
1977
Carl Woese
What was Carl Woese’s proposal?
Sub-divide prokaryotes into archaebacteria and eubacteria
Why do scientists classify organisms?
- To identify species
- To predict characteristics
- To find evolutionary links
What are the 3 domains?
- Archaea
- Bacteria
- Eukarya
Species difinition?
A group of organisms that are able to reproduce to produce fertile offspring.
Why are products of two different species infertile?
- Contain an odd number of chromosomes.
Meiosis and gamete production cannot take place correctly as all chromosomes must pair up.