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