Classification SER
What is one reason scientists have developed a system to classify organisms?
-Classification allows for better identification of new organisms.
Which is the best analogy for classification?
-Classification is like organizing a closet by hanging clothes together based on their type, color, and season.
Which statement best summarizes how classification systems have changed over time?
-Classification systems have become more complex to allow for all the discoveries made about organisms.
How did Linnaeus improve the classification of organisms?
-He created a way of naming organisms based on genus and species
How did Robert Whittaker change classification?
-He reorganized life into five kingdoms.
Which situations would involve classification? Select three options. -performing an analysis of an individual's blood -identifying which group of cats a new species belongs in -analyzing the relatedness of whales and dolphins -determining the name of a new species of pine tree -creating a family tree to look for a pattern of a disease
-identifying which group of cats a new species belongs in -analyzing the relatedness of whales and dolphins -determining the name of a new species of pine tree
Archie is a biologist and is working to classify a newly discovered organism. Which of these steps will he most likely do in the process?
-look for more similarities and differences between two species that have similar bodies
What did the classification systems of Aristotle and Whittaker have in common?
-looked at characteristics of organisms
How many levels of organization did Woese use?
8, he added domain
hierarchy
A group organized by rank
binomial nomenclature
A system for giving each organism a two-word scientific name that consists of the genus name followed by the species name
classification
Assignment of objects or people to categories on the basis of shared characteristics.
3 domains
Bacteria, Archaea, Eukarya
Hamish writes down some sentences to summarize the goal of classification. What best describes classification?
Classification organizes organisms based on their characteristics.
How to remember D, K, P, C, O, F, G, S
Did King Phillip come over for good soup?
D, K, P, C, O, F, G, S
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species
Aristotle's classification system
He developed the first widely accepted system of biological classification over 2000 years ago. Plants vs animals. Pros:good for organizing. Cons: hard to fit organisms into, didn't account for change, no evolutionary relationships
Why do scientists classify organisms?
It makes organisms easier to study and organize them
5 kingdoms
Monera, Protista, Fungi, Plantae, Animalia
How has the system of classifying organisms changed since Linnaeus's work?
More levels have been added to the hierarchy.
Carl Woese
Named Domains discovered archaea
Why is it important to classify living organisms?
Scientists may study and discuss organisms more easily.
structure
The arrangement of parts in an organism
Linnaean Classification System
The grouping of all living things according to their shared exterior characteristics. Was a heirarchy, "Father of Taxonomy"
taxonomy
The science of classifying organisms
Which scientist created the most modern classification hierarchy that we use today? Aristotle Linnaeus Woese Whittaker
Woese
needs of an organism
air, water, food, shelter, space
Linnaeus's naming system
binomial nomenclature Genus specis (in italics)
Benefits of classification
makes organisms easier to study allows for identification of new organisms shows how closely related organisms are to each pther
Whittaker's 5 Kingdoms
monera -> Protista -> plantae -> Fungi -> animalia based on sturcutre AND function
The science of classifying and naming organisms based on their different characteristics is called
taxonomy
Which best matches the modern classification system?
three domains and six kingdoms
function
what the structure does
