4.3.1Biological classifications)

State the 3 criteria that early classification systems used to identify a species

• Generally are similar in appearance and anatomy

• Normally only interbreed with each other to produce fertile offspring

• Often occupy the same niche

Give 3 reasons why we have classification systems

• It is for our convenience

• To make the study of living things easier and manageable

• To make it easier to identify organisms

• To help up see the relationships between species

What are the 8 taxonomic levels used to classify organisms

• Domain

• Kingdom

• Phylum

• Class

• Order

• Family

• Genus

• Species

State the name of each group

• Each group is called a taxon

Describe what is meant by binomial naming system

• This is when scientists use the genus and the species name in that order to describe a species precisely

give 1 advantage of binomial naming

• it is understood by all scientists across the world and is international

Describe how naming of extremophile changed over time

• They appeared to be prokaryotic and named “archaebacteria” meaning ancient bacteria

• Using technology and research we know that they are more closely related to eukaryotes than to bacteria

• Today, these bacteria have been renamed archaea