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
It uses Latin words
Each species has a unique name
It lets scientists discuss individual species
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Which 18th Century scientist developed the traditional classification system for classifying living things?
Carl Linnaeus
Carl Woese
Charles Darwin
Gregor Mendel
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Which international system is commonly used to classify organisms?
The Linnaean classification system
The group creation system
The binomial naming 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?
Order
Genus
Kingdom
Species
Class
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What is the binomial name for humans?
Mammalia primates
Homo sapiens
Felis tigris
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How do we write the binomial name of a species?
(Select all that apply)
All in uppercase (capitals)
All in italics
All in bold
All lower case except the first letter of the genus
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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 lupus
Species name is Canis
Species name is lupus
Genus name is Canis
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Which 20th century scientist used microscopes and modern technology to develop the three domain system to classify organisms?
Carl Linnaeus
Charles Darwin
Carl Woese
Gregor Mendel
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Carl Woese developed the three domain system to classify organisms. What are the three domains?
Animals
Eukaryotes
Plants
Protoctists
Bacteria
Archaea
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Which of the following are considered Eukaryotes?
(Select all that apply)
Protoctists
Plants
Animals
Archeae
Fungi
Bacteria
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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)?
The divergence of a single population/species into two separate populations/species
The introduction of a new competitor
When species become extinct
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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? Birds Fish Rabbits Sharks
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Which group(s) of animals have hair? (Select all that apply) Chimpanzees Rabbits Sharks Birds
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Which group has a bony skeleton but no limbs? Birds Shark Rabbits Fish
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