Classification & Evolution Flashcards
Define classification
The process of grouping living organisms with similar features
why is classification needed?
- makes identifying new species easier
- helps predict characteristics
- helps find evolutionary links between species in the same group
- scientists worldwide will be able to share research with no confusion
What is a Binomial Naming System?
scientific naming system using the genus and species
Genus. Species.
when writing with pen UNDERLINE the genus and species.
on computer type in ITALICS
What are ADVANTAGES of such systems?
Avoids confusion between scientists from diff. countries as there are diff. names for animals.
What are the 8 levels of taxonomic groups
Domain Dont Kingdom Kill Phylum People Class Cause Order Objects Family Form Genus Green Species Snakes
what are the Domain and Kingdom categorised into?
Domain- Archaea , Bacteria , Eukarya
Kingdom- Animalia, prokaryotes, protoctista, fungi, plantae
state the general characteristics of the Fungi Kingdom (8)
- unicellular/multicellular,
- eukaryotic,
- cell wall made of chitin
- multinucleate cytoplasm.
- mostly saprophytic(feed on decaying matter)
- no mechanism for movement
- no chlorophyll & chloroplasts
- food stored as GLYCOGEN
state the general characteristics of the Animalia Kingdom (4)
- multicellular, eukaryotic, no cell walls,
- heterotrophic(can’t make their own food instead eat plant & animals)
- move via cilia/flagella/ contractile protein/muscular organs
- food stored as GLYCOGEN
state the general characteristics of the Proctoctista Kingdom (6)
- mainly unicellular
- no nucleus & membrane bound organelles
- some have chloroplasts
- some are immobile others move by flagella/cilia
- some autotrophic feeders
- some heterotrophic feeders, others are parasitic
state the general characteristics of the Prokaryotae Kingdom (4)
- unicellular
- no nucleus/membrane bound organelles
- only a ring of ribosomal DNA
- nutrients absorbed by cell wall/photosynthesised
state the general characteristics of Plantae Kingdom (6)
- multicellular
- cell walls made of cellulose
- all contain chlorophyll
- autotrophic feeders
-most don’t move
BUT gametes of some plants move via cilia/flagella
-food stored as STARCH
What are the similarities between Archaea and Bacteria
both have no membrane bound organelles
unicellular
How is Bacteria different to Eukaryotae and Archaea
no protein in DNA
cell wall is made up of peptidoglycan
what are the similarities between Archaea and Eukaryotae
DNA associated protein
