Clasification Flashcards
What is the purpose of clasification?
To organize living organisms into
groups based on similarities and evolutionary relationships.
What are the 8 hierarchy levels?
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
What are the 5 (6) kingdoms of life?
- Prokaryotes (bacteria)
- Protists
- Fungi
- Plants
- Animals
What are the three domains of life?
- Archaeabacteria (prokaryotes)
- Bacteria (prokaryotes)
- Eukaryotes
Archaebacteria?
Any group of cingle celled organiss who lack a defined nucleus
Prokaryote?
A prokaryote is a single-cell organism whose cell lacks a nucleus and other membrane-bound organelles.
What is a protist?
A protist or protoctist is any eukaryotic organism that is not an animal, land plant, or fungus.
What are eukaryotes?
Eukaryote, any cell or organism that possesses a clearly defined nucleus.
Structure of a Scientific binomial system name
Genus+spieces. Genus is capitalized and both words are italzed or underlinned
What is the binomial clasification system?
The Binomial naming system is a system where organisms are classified into specialized names thrpugh a procces of determening if the organism has certain features
How do cladograms work?
A cladogram uses lines that branch off in different directions ending at a clade, a group of organisms with a last common ancestor. Each Line represents a certain factor that differs a species from its ancestor
define a species-
ability to reproduce and produce fertile offspring
Why are bacteria considered a scpieces
Becuase they posses all 7 aspects of life including reproduction
What is a dichotomus key?
A dichotomous key is a scientific tool used to identify and categorize different organisms or objects based on a series of choices that lead the user to the correct name or classification!
how do scientific names (especially the genus and species) reflect evolutionary
relationships between organisms.
The genus is the same in multipe species it shows us that the spieces had a common ancestor and are closely related to each other
Lenius system
It works as a filter, seperating each organism into hiearchy levels. Domains bieng the most wide spread and species bieng the smallest
Complicatioons with the Lenius system
Some scientists may find it very easy to use and not specific
What can you say about prokaryotes
There way of multiplying is through asexual cloning
The structures that can be distinguished in a Prokaryotes are a cell membrane, flagelum (Tail) and cilia (litle hairs)
they have cell walls
Thier dna floats aroun in the cytoplasm
Vertabrates?
Any species with an internal skeleton
Invertebrates?
Any species that dont have a backbone
