Finding Order in Diversity Section 18–1 This section explains how living things can be organized...
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Transcript of Finding Order in Diversity Section 18–1 This section explains how living things can be organized...
![Page 1: Finding Order in Diversity Section 18–1 This section explains how living things can be organized for study.](https://reader035.fdocuments.us/reader035/viewer/2022081813/56649f165503460f94c2bc1f/html5/thumbnails/1.jpg)
Finding Order in Finding Order in Diversity Diversity Section 18–1
This section explains how living things can be organized for study.
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Why Classify? Why Classify?
Why do biologists use a classification system to study the diversity of life?
• They use it to name organisms and group them in a logical manner.
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Why Classify?Why Classify?
The science of classifying organisms and assigning them universally accepted names is known as_____.
•taxonomy
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Why Classify?Why Classify?
Is the following sentence true or false? In a good system of classification, organisms placed into a particular group are less similar to each other than they are to organisms in other groups.
• false
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Assigning Scientific Assigning Scientific Names Names
• Why is it confusing to refer to organisms by common names?
• Common names vary among languages and even among regions within a single country. Furthermore, different species can share a single common name.
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Assigning Scientific Assigning Scientific NamesNames
Circle the letter of each sentence that is true about early efforts at naming organisms.
• Names often described detailed physical characteristics of a species.
• Names could be very long.
• It was difficult to standardize the names.
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Assigning Scientific Assigning Scientific NamesNames
• The two-word naming system developed by Linnaeus is called_______.
•binomial nomenclature
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Assigning Scientific Assigning Scientific NamesNames
Circle the letter of each sentence that is true about binomial nomenclature.
• Each species is assigned a two-part scientific name.
• The scientific name is always written in italics.
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Assigning Scientific Assigning Scientific NamesNames
What is the genus of the grizzly bear, Ursus arctos?
The genus is Ursus.
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Linnaeus’s System of Linnaeus’s System of Classification Classification
A group or level of organization in taxonomy is called a taxonomic category, or_____.
• taxon
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Linnaeus’s System of Linnaeus’s System of ClassificationClassification
The largest taxonomic category in Linnaeus’s system of classification is the _______ , and the smallest is the ______ .
• Kingdom,
• Species
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Linnaeus’s System of Linnaeus’s System of ClassificationClassification
What two kingdoms did Linnaeus name?
He named the Animalia and Plantae kingdoms.
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Linnaeus’s System of Linnaeus’s System of ClassificationClassification
Fill in the name of each missing taxonomic category in the chart below.