Biodiversity Unit Flashcards
(40 cards)
What is the system that names all species
Binomial nomenclature
What is Taxanomy
The science of naming, identifying and classifying species
Who developed binomial nomenclature
Carolus Linnaeus a Swedish botanist
What does binomial nomenclature mean
Binomial means two parts nomenclature means naming system
How many parts of names do each species have
Each species has a two part name
What does the first word of the name refer to
The genus
What does the second part of the name refer to
Identifies the particular species in the genus
What language are the names in binomial nomenclature written in
Latin the common language at the time
What is the scientific name of an animal called
Binomial nomenclature
How should scientific names be typed in and written in
Typed in italics written with an underline
How are the species and genus written
Species in lower case, genus is capitalized
How many categories are in Linnaeus’s system? And what are they
There are 8, they are called taxons
What purpose does categorizing in taxons do?
Helps to limit number of species, becoming more specific until only one animal remains
What are the 8 taxons in order?
Domain, kingdom, phylum, class, order, family, genus, species
Can there be sub categories within taxons
Yes
How many species concepts are there
3
What are the three species concepts called
Morphological, biological, phylogenetic
What is the morphological species concept
It focuses on the morphology or the structure/form of an organism, relies on comparing measurements and descriptions of organisms, takes into account life cycle changes and variations
What is the biological species concept
It focuses on similar characteristics and if organisms can interbreed naturally and produce viable, fertile offspring
What is the phylogenetic species concept
It focuses on the evolutionary relationships with other organisms, phylogeny is the evolutionary history of an organism, says a species is a cluster of organisms, distinct from others & shows patterns of relationships, a diagram of this is a phylogenetic tree
What are species
A group of organisms that can interbreed naturally and produce fertile offspring
How many species have been identified
2 million
What is a dichotomous key ( dio toe mus)
An identification tool that biologists use to identify organisms
What 2 part statements lead the user to correct ID of an organism
Dichotomous key
