Biology 5090 · O Level · Concept and use of a classification system

Concept and use of a classification system — practice question

A student has sketched six different arthropods that live in woodland. When making a dichotomous key, which question could be used to distinguish arthropods 2, 5 and 6 from arthropods 1, 3 and 4?

  • ADoes it have a segmented body?
  • BDoes it have antennae?
  • CDoes it have six legs?
  • DDoes it have wings?

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