The diagram shows how the tool works. To sort a mixed tray of small animals, a learner works through a series of paired statements about visible features un...
Question 1 Report
The diagram shows how the tool works.
To sort a mixed tray of small animals, a learner works through a series of paired statements about visible features until each animal is named. Which tool is being used?
Answer Details
A dichotomous key identifies organisms through a series of steps, each offering two contrasting statements about a feature; the choice made at each step leads onward until the organism is named. That step-by-step pairing of statements is precisely what is described here. A food chain or food web shows feeding relationships (who eats what), and a pyramid of numbers shows how many organisms are at each feeding level; none of these is used to identify an unknown animal. The word to hold onto is dichotomous, meaning divided into two at each step.
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