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A dichotomous key is a tool that allows the user to identify the name of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. A Key consists of a series of choices that lead the user to the correct name of a given item. "Dichotomous" means "divided into two parts". Therefore, a dichotomous key always gives two, and only two, choices at each step.

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15y ago

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Example of dichotomous key?

Think of 4 fruits - apple, orange, cherry and banana. A simple dichotomous key would be this: 1 - Fruit shape: Is the fruit round (2) or irregular (3)? 2 - Fruit color: Is the fruit usually red (2a) or orange (2b)? 2a - Fruit seeds: Are there many small seeds (2ai) or one large pit (2aii)? 2ai - Apple 2aii - Cherry 2b - Orange 3 - Banana


How do you describe the process of separating organisms by their similarities and differences?

The process of separating organisms by their similarities and differences is known as classification or taxonomy. Organisms are grouped based on shared characteristics to determine their relationships and evolutionary history. This helps scientists better understand biodiversity and create a system for organizing and naming different species.


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An arrow key is a key with a arrow on it at the bottom of you key board.


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