Classification Flashcards
What is classification? What is similiar?
The name given to the process by which living organisms are sorted into groups. Share similiar features.
What are taxonomic groups?
the most widely used classfication system ordered in a heirarchy
What are the seven groups in the classification system?
Kingdom Phylum Class Order Family Genus Species (memorise like a chant)
What are hierarchal classification systems also referred to as?
Linnean classification
What is the further taxon of classification?
Domain
What led to the addition of this further level?
Further studies into genetical material
Why are classification systems always changing?
Due to advances in scientific thinking and techniques which provide more detail into the biological and genetic make-up of organisms.
What is the system of naming called?
binomial nomenculture
What is binomial nomenculture?
the system of nomenclature in which two terms are used to denote a species of living organisms, the first one indicating the genus and the second the specific epithet.
What does epithet mean?
Title- e.g. the species in binomial nomenculture
Why do scientists classify organisms? (3 brief points)
- to identify species
- to predict characteristics
- to find evolutionary links
Define species
A group of organisms that can reproduce to produce fertile offspring
What are the 3 domains?
Archaea, Bacteria, Eukarya
What makes offspring infertile?
Having an odd number of chromosomes, because meiosis and gamete production cannot take place correctly.
Why can’t meiosis and gamete production take place normally in infertile offspring?
Must be even number as chromosomes must pair up.