Classifaction Flashcards
Define “taxonomy”
Classifying species into groups based on observed physical characteristics
List the levels of grouping organisms 8
- Domain
- Kingdom
- Phylum
- Class
- Order
- Family
- Genus
- Species
What is the usefulness of giving each species a Latin binomal name?
Scientists can communicate about organisms in a standard way that minimises confusion
What is the first word in an organism name?
The genus
What is the second word in an organism name?
The species
What is the problem with the early classification system? 3
- Only based on observable phenotypes
- Scientists don’t agree on relative importance of said phenotypes
- Even organisms with similar phenotypes may not have similar DNA
What are the 5 kingdoms?
- Prokaryotae
- Protoctista
- Fungi
- Plantae
- Animalia
What are the features of the prokaryotae kingdom?
- Prokaryotes
- Unicellular
- No nucleus
- Less than 5 micrometres
Name an example of the prokaryotae kingdom
Bacteria
What are the features of the protoctisa kingdom?
- Eukaryotic cells
- Usually live in water
- Single celled/simple multicellular organisms
Name an example of the protoctisa kingdom
Algae
What are the features of the fungi kingdom?
- Eukaryotic cells
- Chitin cell wall
- Saprotrophic : absorb substances from dead/decaying organism
Name 2 examples of the fungi kingdom
- Mould
- Yeast
What are the features of the plantae kingdom?
- Eukaryotic
- Multicellular
- Cellulose cell walls
- Can photosynthesise
- Autotrophic
Give an example of the plantae kingdom.
Flowering plants