Classification + Evolution Flashcards
(24 cards)
What is classification?
The act of arranging organisms into groups based on similarities and differences
What is taxonomy?
The study of classification
What are the 3 domains?
Archaeology, Bacteria and Eukarya
What are the 5 kingdoms?
Prokaryota
Protoctista
Fungi
Plantae
Animalia
What is the order of taxonomic rank?
Kingdom
Phylum
Class
Order
Family
Genus
Species
What are some characteristics of fungi?
- Chitin cell wall
- Eukaryotic
What does saprotrophic mean?
Absorbs organic matter
What does autotrophic mean?
Makes its own food
What does heterotrophic mean?
Consumes plants and animals
(Omnivores)
What are some characteristics of plantae?
Eukaryotic
Multicellular
Cellulose wall
Chlorophyll + Photosynthesis
What 2 taxonomic ranks are used on the binomial naming system?
Genus + Species
Why is the binomial naming system used?
To avoid confusion between languages
What is phylogeny?
The study of the evolutionary history of groups of organisms
What is a species?
The smallest group that shares a common ancestor
How can anatomical evidence be used in classification?
Similarities in structure and function of body parts
How can molecular evidence be used to classify species?
Similarities in proteins and DNA
Give 2 ways in which scientists can confirm decisions on classification
- Publishing in journals
- New technologies
What is continuous variation?
When individuals of a population vary within a range
What is intraspecific variation?
Variation within a species
What is interspecific variation?
Variation between different species
Give some examples of discontinuous variation
Blood type, antibiotic resistance
Define discontinuous variation
When there are 2 or more distinct categories that individuals fall into
State 2 factors that affect variation
Genes and/or environment
