3.4.5 Specices And Taxonomy Flashcards
(14 cards)
What is a species?
A group of organisms that can produce fertile offspring
What is courtship behaviour?
Courtship behaviour is a necessary precursor to successful mating.
What does courtship behaviour allow?
Individuals to recognise and reproduce with individuals of their own species, making reproduction much more successful.
Why is courtship behaviour important?
This is important, as otherwise infertile offspring would be produced
What signals does courtship behaviour involve?
-visuals
-auditory
-chemical signals
-tactile
Courtship behaviour is …
Species specific
What does courtship behaviour being species specific allow?
Allows courtship behaviour to be used to classify organisms
The more …-… a species. The more … their courtship behaviour.
The more closely-related a species, the more similar their courtship behaviour
How does the phylogenetic classification system arrange species?
Arranges species into groups based on their evolutionary origins and relationships
What factors are used to classify animals into a phylogenetic tree?
-anatomical features
-fossils
-biochemical analysis of base sequences in DNA or amino acid sequences in proteins
What does hierarchy mean?
Smaller groups are placed within larger groups, with no overlap between groups
What is taxonomy?
The study of classification
What are the taxonomic groups?
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
