4.5 Species and taxonomy Flashcards
Define species
A group of organisms that can interbreed to produce fertile offspring
What are the advantages of courtship behaviour?
Individuals can recognise sexually mature members of their own species of the opposite sex, synchronise mating, form a pair bond, and successfully breed
Define classification
The process of arranging organisms into groups
Name the eight groups in the classification hierarchy, from largest to smallest
- Domain
- Kingdom
- Phylum
- Class
- Order
- Family
- Genus
- Species
What are the five kingdoms?
- Animals
- Plants
- Fungi
- Prokaryotes
- Protists
What system is used to give species a universal name?
Binomial naming system
What are the two components to be a binomial name?
Generic name = the genus the organism belongs to. Two closely related species will share the same genus
Specific name = the species the organism belongs to
What is phylogenetic classification?
The process of arranging organisms into groups based on their evolutionary origins and relationships
How can we clarify evolutionary relationships between organisms?
Analyse their molecular differences. Advances in immunology / genome sequencing provide clear pictures of how related two organisms are
Name the three domains organisms can be separated into
- Bacteria
- Archaea
- Eukaryota
Explain hierarchical classification
- Groups within groups
- No overlap between groups
How does the scientific community evaluate their data
- Scientific journals
- Peer review
- Collect evidence ; to either support or reject the suggestion
