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IB Biology HL A3.1.14 Hl Dichotomous Key Development Questions

Dichotomous keys identify organisms through paired yes/no choices. Build keys from observable features arranged in a character matrix, and use local plant or animal species to test them.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Identify organisms by following the paired yes/no choices in a dichotomous key.
  • Construct a dichotomous key from observable features arranged in a character matrix.
  • Build and test a dichotomous key using local plant or animal species.

IB Biology HL A3.1.14 Hl Dichotomous Key Development Questions question 1

[Maximum number: 1]

The following shows a dichotomous key.

Figure for Question IB Biology HL A3.1.14 Hl Dichotomous Key Development Questions question 1 — IB Biology HL
Table for Question IB Biology HL A3.1.14 Hl Dichotomous Key Development Questions question 1 — IB Biology HL

Using the dichotomous key above, identify the genus of bird W and bird Z .
Bird W:
Bird Z:

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