✅10 - Biodiversity Flashcards
What is a species?
Organisms capable of breeding to produce living, fertile offspring
Which system is used to name species?
The binomial system
What is the first name in the binomial system?
Th generic name - denotes the genus
What is the second name in the binomial system?
The specific name - denotes the species
How are names of species written?
Typed in italics or handwritten and underlined
What are the purposes of courtship behaviour?
To recognise members of their own species
Identify a mate that is capable of breeding
To form a pair bond
To synchronise mating
To become able to breed
Why is it necessary to recognise members of their own species?
To ensure that mating only takes place between members of the same species to ensure fertile offspring
Why is it necessary to identify a mate that is capable of breeding?
Because both partners need to be sexually mature, fertile and receptive to mating
Why is it necessary to form a pair bond?
To lead to successful mating and raising of offspring
Why is it necessary to synchronise mating?
So that it takes place when there is a maximum probability of the sperm and egg meeting
Why is it necessary to become able to breed?
Because a member of the opposite sex needs to be in a physiological state that allows breeding to occur
How do animals tell if a partner is of the same species?
Courtship behaviours are unique to each species
What is classification?
The grouping of organisms
What is taxonomy?
The theory and practise of biological classification
What is artificial classification?
Divides organisms according to differences that are useful at the time, eg size, colour, leaf shape etc. Described as analogous characteristics where they have the same function but not the same evolutionary origin
What is phylogenetic classification?
Based upon the evolutionary relationships between organisms and their ancestors, species classified into groups based on shared features derived from ancestors
What are the 3 domains?
Bacteria, Archaea, Eukarya
What is a mnemonic for remembering the order of taxonomic ranks?
Delicious King Prawn Curry Or Fat Greasy Sausages