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Dichotomous Key. Using Observable Characteristics to Identify Objects. What is a dichotomous key?.
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Dichotomous Key Using Observable Characteristics to Identify Objects
What is a dichotomous key? A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. Keys consist of a series of choices that lead the user to the correct name of a given item. "Dichotomous" means "divided into two parts". Therefore, dichotomous keys always give two choices in each step.
Use a dichotomous key to identify these individuals. Pick an individual to identify, When you are ready click start. Start
Is the individual male or female? Male Female
Is the individual wearing a hat? Hat No Hat
Is the individual in the military? Military Not Military
Is he wearing a dress uniform or a camouflage uniform? Dress Uniform Camouflage Uniform
Introducing Arnold He is a man wearing a hat and a military dress uniform. Return to Start
Introducing Hector He is a man wearing a hat and a camouflage military uniform. Return to Start
Introducing Greg He is a man wearing a hat, but not wearing a military uniform. Return to Start
Does the individual have facial hair or is he clean shaven? Facial Hair Clean Shaven
Is the individual wearing black? Wearing Black Not Wearing Black
What is the individual wearing? Suit Jeans
Introducing Reggie He is a man with facial hair, wearing a black suit, but not wearing a hat. Return to Start
Introducing Hugo He is a man with facial hair, wearing a black shirt and jeans, but not wearing a hat. Return to Start
Introducing Bill He is a man with facial hair who is not wearing black or a hat. Return to Start
What is the individual wearing? Shorts Pants
Introducing Jack He is a clean shaven man who is wearing shorts, but not black or a hat. Return to Start
Introducing Kurt He is a clean shaven man who is wearing pants, but not black or a hat. Return to Start
Is the individual wearing a hat? Hat No Hat
Is the individual wearing purple? Wearing Purple Not Wearing Purple
What is the individual wearing Green Boa and Hat Red Boa and Hat
Introducing Doris She is wearing a purple dress and green boa and hat. Return to Start
Does the individual have a purse? Purse No Purse
Introducing Erin She is wearing a purple dress and red purse, boa, and hat. Return to Start
Introducing Rhonda She is wearing a purple dress and red boa and hat. Return to Start
Introducing Gail She is wearing a hat, but not wearing purple. Return to Start
What is the individual wearing? Pants Skirt
Introducing Jenny She is wearing pants, but not a hat. Return to Start
Introducing Mary She is wearing a skirt and red boots, but not a hat. Return to Start
Introducing Beth She is wearing a skirt and black boots, but not a hat. Return to Start