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Life Sciences/Classification/Materials

J. Bleecker

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atlas.Opening your question…

Whole assignment
worksheetYour class material

Cladogram worksheet

Use this alongside Cladogram worksheet.

Two different tools

A dichotomous key identifies an organism by choosing one of two observable descriptions at each step. A cladogram represents proposed ancestry using . Identification alone does not establish ancestry.

Questions

  1. Key 1

    Identify the insects using the paired statements on your original key.

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  2. Key 2

    Construct and test a key for the leaves in the activity.

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  3. Cladogram

    Use the supplied trait table to build and explain a cladogram.

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Original & sources

Captured class material is kept privately. The companion uses original explanations and references.

Atlas uses original explanations. For exact wording, tables and figures, keep your teacher’s handout or textbook beside it.

Chapter 18 & Chapter 17 class evidencePrivate class evidence from J. Bleecker · checked 2026-10-06

Original atlas explanations and practiceJovan Pahal / atlas · checked 2026-10-06

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