Biodiversity Flashcards
Define species
group of similar organisms that can breed to produce fertile offspring
What is the name of the system used to name organisms?
binomial system
Who created the binomial system?
Carl Linnaeus
What are the two components of the binomial system?
Generic name and specific name
What are the rules when writing a binomial system name?
Generic= capital letter
specific=lower case
name in italics or underlined
if specific name is unknown then ‘sp’ is used
What does courtship behaviour allows individuals to do?
recognize members of their own species identify a mate that is capable of breeding form a pair bond synchronise mating become able to breed
Define Phylogenetic Classification
the grouping of organisms based on evolutionary origins and relationships
Define Taxonomy
biological classification
Name the 2 types of classification
artificial and phylogenetic
Define Artificial classification
give an example
what does artificial classification show?
dividing organism by useful differences at the time
eg colour,number of legs, leaf shape]
shows analogous characteristics ( same function dif. evolutionary origin)
Define analogous characteristic
same function dif. evolutionary origin
Define homologous characteristic
similar evolutionary origins regardless of their function
Name the mnemonic used to remember the taxons
Delicious King Prawn Curry Or Fat Greasy Sausages
What are the corresponding taxons
Delicious King Prawn Curry Or Fat Greasy Sausages
Domain Kingdom Phylum Class Order Family Genus Species
What are the three categories of Domain?
Bacteria
Archaea
Eukarya
What are bacteria?
single celled prokaryotes
What are Archaea?
single celled prokaryotes
What are Eukarya?
group of organisms made up of one or more E cells
What is phylogeny?
shows the evolutionary relationships between organism
shown by phylogenetic tree
What are the sources of evidence for species?
DNA
fossil records
homologous features
evolutionary history
What is genera?
genus
What do they mean by hierarchical?
larger groups containing smaller groups
Why is using fluorescent markers on insects the measuring population size a good idea?
ensures no loss to predation as the mark is only visible in UV light
When measuring a population size what do you have to assume?
the birth rate= death rate
no immigration
