Dichotomous Key Practice

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What is a dichotomous key?

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A tool used by scientists to identify unknown organisms by answering a series of questions about their characteristics.

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What is the purpose of a dichotomous key?

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To identify organisms based on their characteristics.

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What characteristic distinguishes arachnids from insects?

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Presence of antennae; insects have them, arachnids do not.

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What is an example of a characteristic that can be used in a dichotomous key?

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Leaf shape, color, or texture in plants.

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What is binomial nomenclature?

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A system of naming organisms using two names: the genus and species.

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How many legs do insects have?

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Insects have six legs.

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How many legs do arachnids have?

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Arachnids have eight legs.

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What is a characteristic of fish that can be used in a dichotomous key?

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Body shape, fin structure, or coloration.

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What does 'taxonomist' mean?

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A scientist who classifies and names organisms.

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What is an example of a dichotomous key in use?

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Identifying different types of trees based on leaf shape.