Major groups of animals — KCSE Biology

KCSE Biology · 83 practice questions · 3 syllabus objectives

30 easy34 medium19 hard

What You'll Learn

Key learning outcomes for this topic, aligned to the KNEC KCSE syllabus.

Describe the distinguishing features of major animal phyla

Classify animals into major groups with examples

Major groups of animals

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easySHORT ANSWER2 marks

State two common features of organisms in the phylum Chordata. (2 marks)

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Part (a) — 2 marks

Presence of a notochord at some stage of development (1 mk)

Dorsal hollow nerve cord present (1 mk)

easySHORT ANSWER3 marks

State three examples of organisms classified under the phylum Arthropoda. (3 marks)

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Part (a) — 3 marks

Crab (1 mk)

Butterfly (1 mk)

Spider (1 mk)

easySHORT ANSWER2 marks

State two characteristics that distinguish mammals from reptiles. (2 marks)

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Part (a) — 2 marks

Mammals have fur or hair, while reptiles have scales (1 mk)

Mammals produce milk to feed their young, reptiles do not (1 mk)

Describe three traits that are characteristic of the phylum Arthropoda and name one organism that belongs to this phylum. (4 marks)

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