Questions and Answers
What is the most general taxon?
Domain
What are the three Domains?
Eukarya, Bacteria, Archaea
How many Kingdoms are there?
Six
What is the common feature of the animals in the phylum Chordata?
Signup and view all the answers
What is the class of bottlenose dolphins?
Signup and view all the answers
What do all organisms of the same species have in common?
Signup and view all the answers
What does the term 'binomial nomenclature' refer to?
Signup and view all the answers
Who popularized the binomial naming system?
Signup and view all the answers
What does 'binomial' mean?
Signup and view all the answers
What domain do humans belong to?
Signup and view all the answers
What kingdom do humans belong to?
Signup and view all the answers
What is the phylum classification for humans?
Signup and view all the answers
What class do humans belong to?
Signup and view all the answers
What order do humans belong to?
Signup and view all the answers
What family do humans belong to?
Signup and view all the answers
What genus do humans belong to?
Signup and view all the answers
What species do humans belong to?
Signup and view all the answers
What is the Latin meaning of 'Homo sapiens'?
Signup and view all the answers
Which rank contains the largest number of organisms?
Signup and view all the answers
What are the ranks included in the name 'Tursiops truncatus'?
Signup and view all the answers
Two organisms in the same taxonomic class must have physical features in common.
Signup and view all the answers
The domain rank was created a long time ago.
Signup and view all the answers
What distinguishes eukaryotic organisms from archaebacteria?
Signup and view all the answers
What is the binomial name of the killer whale?
Signup and view all the answers
What unique feature is shared by all animals in phylum Chordata?
Signup and view all the answers
Study Notes
Taxonomy Overview
- Taxonomy classifies living organisms into hierarchical categories based on shared characteristics.
- The classification hierarchy includes domain, kingdom, phylum, class, order, family, genus, and species.
- Each ranked category becomes more specific as you move down the list, leading to the most specific level, species.
Domains and Kingdoms
- Organisms belong to one of three domains: Eukarya, Bacteria, or Archaea.
- Eukarya includes complex cells with a nucleus (e.g., animals, plants, fungi, protists).
- Bacteria consists of eubacteria with simpler cell structures.
- Archaea contains archaebacteria, often found in extreme environments.
- There are six kingdoms within the domains: Animals, Plants, Fungi, Protists, Eubacteria, and Archaebacteria.
Phylum, Class, Order, and Family
- The animal kingdom is comprised of numerous phyla; for instance, dolphins are classified under Phylum Chordata, which includes all animals with spinal cords.
- Class Mammalia includes organisms with hair, air-breathing capabilities, and the ability to nurse young with milk, exemplified by bottlenose dolphins.
Species and Binomial Nomenclature
- A species is defined as a group of organisms capable of interbreeding and producing fertile offspring.
- Scientific names are composed of the genus followed by the species, such as Tursiops truncatus for the bottlenose dolphin, adhering to binomial nomenclature.
- Binomial nomenclature, meaning "two names" in Latin, standardizes naming across languages, enhancing clarity and precision in scientific communication.
Human Taxonomy
- Humans fall under Eukarya domain, Animalia kingdom, Chordata phylum, Mammalia class, Primates order, Hominidae family, Homo genus, and sapiens species.
- The Latin term "Homo sapiens" translates to "wise man."
Classification Validations
- Class is the rank that comprises the largest number of organisms.
- "Tursiops truncatus" indicates both the genus (Tursiops) and species (truncatus).
- Organisms within the same taxonomic class share physical features and evolutionary characteristics.
- The domain rank was established more recently than other classification ranks.
- Eukaryotic organisms possess cell nuclei, distinguishing them from archaebacteria.
Important Organism Examples
- Bottlenose dolphin: Eukarya domain, Animalia kingdom, Chordata phylum, Mammalia class, and Tursiops genus.
- Orcinus orca is the binomial name for the orca whale.
Additional Points
- Scientific classification aids in identifying and studying organisms, ensuring the use of consistent terminology globally.
- Understanding taxonomy facilitates knowledge of evolutionary relationships among species.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge of the scientific classification system with these flashcards. Explore the hierarchical structure from domain to species as you learn and memorize key terms and their definitions. Ideal for students in biology or related fields!