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Published byCaroline Soto Modified over 11 years ago
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SBI3U Course Textbook: Biology 11, McGraw-Hill Ryerson
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Diversity of Living Things
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What is diversity? In small groups, create your own definition of diversity
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Why is diversity important?
Continue discussion in groups
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Is the Earth losing its diversity?
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Food, Inc Documentary Trailer
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Jonathan Drori: Why we're storing billions of seeds TED
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Section 1.1 Identifying, Naming, and Classifying Species
WITHOUT using your Macs, define the word “species”
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Section 1.1 Identifying, Naming, and Classifying Species
Species: a group of organism that can interbreed in nature and produce fertile offspring
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Section 1.1 Identifying, Naming, and Classifying Species
Species: a group of organisms that can interbreed in nature and produce fertile offspring Currently, scientists have identified 2 million species on Earth Scientists estimate there are 5 million to 20 million species – so there are countless species we have yet to discover
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Identifying Species - whoa
Do scientists around the world agree on the definition of species? Scientists agree on various definitions called “species concepts” 3 types of Species Concepts: Morphological species concept Biological species concept Phylogenetic species concept
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Identifying Species - whoa
3 types of Species Concepts: Morphological species concept Biological species concept Phylogenetic species concept Read page 11 independently followed by group discussion
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Naming Species Who are these guys?
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Naming Species This species has several different names: groundhog, woodchuck, whistle pig, forest marmot, marmota monax …
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System of Classifying Names: Binomial Nomenclature
Taxanomy: the branch of biology that identifies, names, and classifies species based on natural features Genus: (plural genera) taxonomic group of a closely related species Carolus Linnaeus (1700s), referred to as the Father of Taxonomy
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System of Classifying Names: Binomial Nomenclature
Binomial Nomenclature: a two-part naming system - first name is the scientific name (genus name) followed by a second name that identifies the particular species Genus name is capitalized, species name is in lower case letters, both italicized Example: Homo sapiens Classification the grouping of organisms based on a set of criteria that helps to organize and indicate evolutionary relationships
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In-class/Homework Part 1:
Read pages 10-15 Complete questions #1, 2, and 4 on page 13
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Classifying Species Activity
Activity 1.1, page 13, complete in groups of 2
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Hierarchical Classification
… a method of classifying organisms – species are arranged from most general to most specific Un-nested Classification: Sports Hockey Soccer Tennis Nested Classification: Sports Team Sports Non-team sports Hockey Soccer Tennis Golf
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Classifying Organisms through Taxonomic Categories
Rank: a level in a classification scheme, such as phylum or order Taxon: a named group of organisms such as a phylum Chordata or order Rodentia
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In-class/Homework Part 2:
Complete question #6 on page 16
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