Classification
This lesson covers:
- Why we need classification systems
- How Carl Linnaeus classified living things into groups depending on their structure and characteristics
- The order of the groups: kingdom, phylum, class, order, family, genus, and species
- What the 'binomial naming system' is, and why it's important
- Why Carl Woese introduced 'domains'
- What 'evolutionary trees' are
What is the advantage of using a binomial system to name species?
(Select all that apply)
There are two names to remember rather then one
Each species has a unique name
It uses Latin words
It lets scientists discuss individual species
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Which 18th Century scientist developed the traditional classification system for classifying living things?
Gregor Mendel
Carl Linnaeus
Carl Woese
Charles Darwin
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Which international system is commonly used to classify organisms?
The Linnaean classification system
The binomial naming system
The group creation system
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What is the correct order of groups in the Linnaean classification system?
kingdom, , class, , family, , species.
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Which two groups in the classification system are used in the binomial naming system?
Class
Order
Species
Kingdom
Genus
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What is the binomial name for humans?
Homo sapiens
Mammalia primates
Felis tigris
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How do we write the binomial name of a species?
(Select all that apply)
All in italics
All in uppercase (capitals)
All lower case except the first letter of the genus
All in bold
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The binomial name for grey wolves is Canis lupus.
What are the species and genus names for the grey wolf?
Genus name is Canis
Species name is lupus
Species name is Canis
Genus name is lupus
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Which 20th century scientist used microscopes and modern technology to develop the three domain system to classify organisms?
Carl Woese
Gregor Mendel
Carl Linnaeus
Charles Darwin
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Carl Woese developed the three domain system to classify organisms. What are the three domains?
Bacteria
Plants
Archaea
Protoctists
Eukaryotes
Animals
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Which of the following are considered Eukaryotes?
(Select all that apply)
Fungi
Plants
Archeae
Bacteria
Animals
Protoctists
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What do evolutionary trees show?
The relationship based on binomial classification
The evolutionary relationship between the organisms being studied
The importance of natural selection within an organism
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What do the branch points show on an evolutionary tree (circled red in the above diagram)?
When species become extinct
The divergence of a single population/species into two separate populations/species
The introduction of a new competitor
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The diagram above shows an evolutionary tree for some groups of animals. It also shows when some characteristics first evolved. |
Which group is most closely related to crocodiles? Sharks Birds Fish Rabbits
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Which group(s) of animals have hair? (Select all that apply) Sharks Rabbits Birds Chimpanzees
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Which group has a bony skeleton but no limbs? Shark Fish Rabbits Birds
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