4.5 Species And Taxonomy Flashcards
1
Q
What is the definition of a species?
A
Organisms that can interbreed to produce fertile offspring
2
Q
What type of behaviour attracts a mate?
A
Courtship behaviour
3
Q
Why are courtship behaviours useful when classifying species?
A
They are species specific and only organisms from the same species will respond to them
4
Q
What is the evolutionary relationship between organisms called?
A
Phylogeny
5
Q
What does a phylogenetic tree show?
A
The evolutionary relationship between different species
6
Q
What is the hierarchy of taxa?
A
Domain
Kingdom
Phylum
Class
Order
Family
Genus
Species
7
Q
What does the binomial naming system consist of?
A
The genus and the species
8
Q
Which three techniques can be used to understand evolutionary relationships between organisms?
A
- Genome sequencing - DNA base sequence can be compared between organisms.
- Amino acid sequencing
- Antibody-antigen interactions - species produce specific antibodies that recognise foreign antigens. They can be isolated and mixed with another organism’s antigens to see how many complexes form.
