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)
Each species has a unique name
It uses Latin words
There are two names to remember rather then one
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
Charles Darwin
Carl Woese
Carl Linnaeus
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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
Species
Class
Kingdom
Genus
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What is the binomial name for humans?
Mammalia primates
Felis tigris
Homo sapiens
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How do we write the binomial name of a species?
(Select all that apply)
All in bold
All in italics
All lower case except the first letter of the genus
All in uppercase (capitals)
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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
Species name is Canis
Genus 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?
Charles Darwin
Carl Linnaeus
Gregor Mendel
Carl Woese
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Carl Woese developed the three domain system to classify organisms. What are the three domains?
Archaea
Eukaryotes
Bacteria
Plants
Protoctists
Animals
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Which of the following are considered Eukaryotes?
(Select all that apply)
Fungi
Animals
Plants
Archeae
Protoctists
Bacteria
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What do evolutionary trees show?
The importance of natural selection within an organism
The relationship based on binomial classification
The evolutionary relationship between the organisms being studied
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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? 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? Fish Shark Rabbits Birds
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