Dichotomous Key Slides

Slides:

Advertisements

Similar presentations

Direct Instruction: Dichotomous Keys

Advertisements

Topic: Classification

ClassificationClassification Modified By Ms. Hundley.

Classifying Living Things

Classification History

Chapter 15: Classification

Classification Classify objects according to a dichotomous key Classify objects according to a dichotomous key Identify similarities and differences among.

Classification of Living Things Please write down everything in THIS COLOR.

Classification The grouping of objects or information based on similar characteristics.

Classification Think of something in your house that you sort or keep in a certain order.

Taxonomy Clades and Keys. Evolutionary Classification Phylogeny = the study of evolutionary relationships Biologists now group organisms into categories.

Taxonomy – the branch of biology

Classifying Beads Activity  Assessing Prior Knowledge: 1.What is the scientific name for humans? 2.What do you think are the common names for Felis catus.

Classification of Earth’s Diversity Biodiversity Biodiversity – the variety of organisms on earth is the result of 3.5 billion years of evolution Approx.

Classification. Memorize this in 50 secs January Car Heart Lungs December Van September Moon Bike Star Brain Sun.

Classification History

Spring District Assessment Review!. 1.Dogs (Canis familiaris) are most closely related genetically to which of the following organisms? A Lycaon pictus.

Classification Go to Section:. Important Vocabulary 1. Taxonomy: science of classification 2. Binomial nomenclature: two name naming system 3. Prokaryotic:

DO: Today we will learn about the seven classification groups.

1. Why do we use a classification system? Organize living things into groups Give organisms names Trees Maples – Fir – Pine - Acer Abies Pinus.

History of Classification

Taxonomy The science of classifying living organisms.

1 What is Taxonomy?. 2 the science of naming and classifying organisms.

Bell Ringer #3 Jan 30/31. Question 1  Dogs (Canis familiaris) are most closely related genetically to which of the following organisms?  A African hunting.

18-1 Finding Order in Diversity. To study the diversity of life, biologists use a system of classification to logically name and group organisms based.

Classification Chapter 18.

Finding Order in Diversity

Chapter 1 Section 2 Classification.

Classification of Organisms

Chapter 7 Classification – putting things into orderly groups based on similar characteristics.

Classification. Classification – grouping of objects or information based on similarities Taxonomy – branch of biology that groups and names organisms.

Classification History

What is That?  Some people call them Spider Crickets.  So is this a spider or a cricket?

Dichotomous Keys.

PLEASE DO THIS!! Take off your left shoe and place it on my desk in the front.

Dichotomous Keys! Chapter 2.1 (pages 52-53).

Classification. What is Classification The process of putting things into groups based on their similarities.

TAXONOMY The Science of Classifying Organisms. Why do we need to classify? When you have a lot of information, it is best to organize and group items.

Lesson Overview Lesson Overview Finding Order in Diversity Common Characteristics of all Life 1.All living things contain DNA. 2.All living things grow.

Classification Review!. The scientific name for dogs is Canis familiaris. What is its species name?

Classification ~ Sorting living things into groups ~ By the end of the lesson you should be able to: 1)Define the term ‘species’ 2)Name the 7 levels of.

9.2 Biologists use seven levels of classification.

Classification. Taxonomy is the science of grouping and naming organisms. a.k.a. – the science of classification Classification the grouping of objects.

BINOMIAL NOMENCLATURE

SciencePlanner2/2/16 Target:be able to explain scientific names. WU:In your table groups come up with seven (7) questions which will sort us into groups.

Classification of Living Organisms. 1.8 million species have been identified and given names. 2/3 of these animals are insects.

Direct Instruction: Dichotomous Keys

1. Why do we classify them? 2. The 5 kingdoms 3. How we name living things Classification: The act of grouping things by using a set of rules.

Animal Classification and Dichotomous Keys. Why classify? In order for biologists to study the diversity of life, organisms are classified in a universal.

Classification. The History of Organization Aristotle BC Interested in biological classification. Patterns in nature. Carl Linnaeus

17.1 Notes Classification. Classification Notes outline A. Classification Why? Taxonomy Aristotle Linnaeus B. Naming organisms common name scientific.

Taxonomy The science of naming organisms.. Aristotle 2000 years ago – only 1000 or so organisms had been “discovered” Classification system developed.

 Biologists have identified about 1.5 million species and think there may be many more yet to be discovered.  In order to study organisms it is easier.

Classification- putting things into orderly groups based on similar characteristics.

THE CLASSIFICATION OF LIVING THINGS

Simple Keys. Learning Objectives Use simple dichotomous keys based on easily identifiable features (two types)

Warm-up on half Sheet! Use Notes from yesterday or Webquest from Thurs

Classification.

Notes Science Classification Keys Tennessee SPI Objective:

Notes Science SPI Classification Keys

Classification of Living Things

what are Dichotomous Keys and how do I use them?

Direct Instruction: Dichotomous Keys

Direct Instruction: Dichotomous Keys

Life is organized at all levels from cells to biosphere

Classification of Living Things

Direct Instruction: Dichotomous Keys

Learning Objectives What is a Dichotomous Key

Life is organized at all levels from cells to biosphere

Presentation transcript:

Dichotomous Key Slides

Dichotomous Keys Dichotomous 1. a division or contrast between two things that are or are represented as being opposed different. 2. Divided into two parts. Dichotomous Key Function: noun : a series of pairs of phrases or descriptions which are used to classify a group of living things by making choices between the sets of traits and characters described in each pair

Find the species name for the dog the house cat, and the polar bear Family Ursidae- go to 2 Not Ursidae– go to 3 Coat Color Black- Ursus horribilus White – Ursus arctos Genus- Canis- go to 4 Not canis- go to 5 Black & grey – Canis lupus White with brown spots- canis familiaris Size- Large- panthera pardus Small- go to 6 Coat color Gray- Felis catus Tan with spots & stripes- Felis pardalis

Tips for using a dichotomous key Choose one organism. Start with #1 and follow instructions until you identify the organism. If you are unsure of an adaptation that is being described, then look at other organisms for examples and clarifications. Once you are finished identifying your first organism, choose another. Begin with Step 1 every time you begin to identify a new organism.

Tips for creating your own dichotomous key Step 1- find a characteristic that divides your group into two major groups. NO organism can fall into both groups! 1a- go to step 2 1b- go to step ____. (this step will be created after you have identified all organisms that fit into the 1a classification) Step 2- identify all organisms that fit into this group (you may use multiple steps) before you begin to identify organisms that fit into 1b.

Insect Anatomy Diagram

Antenna length Leg length A. Antenna extend past front legs……………………………go to 2 B. Antenna do not extend past front legs…………………. go to Leg length A. at least 4 legs are longer than body………………… water strider B. less than 4 legs are longer than body………………..go to 3