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ICSE Class 8 Biology — Full Syllabus Sample Paper

A full-syllabus ICSE Class 8 Biology paper in the board pattern: 80 marks, covering every chapter. The answer key is a separate download, so you can print the paper for your child without the answers.

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Paper: PDF, 4.1 MB · Answer key: PDF, 5.8 MB · Updated for 2026–2027

A taste of the paper

Here are three questions from the paper. Download the full PDF for all 80 marks' worth.

Question 1 · Label the diagram

Label the parts of the human heart shown in the internal structure diagram. [5]

Internal structure of the human heart with five parts marked A to E
Source: MyRevisionDeck | Internal

(a) Label A [1]

(b) Label B [1]

(c) Label C [1]

(d) Label D [1]

(e) Label E [1]

Answer: (a) Right atrium · (b) Left ventricle · (c) Tricuspid valve · (d) Bicuspid valve · (e) Septum

Question 2 · Odd one out

Choose the odd one out from the following terms and name the category to which the others belong:

Murrah / Mehsana / Sahiwal / Surti [1]

Answer: Odd one out: Sahiwal. Category of remaining: Indian breeds of buffaloes.

Murrah, Mehsana and Surti are all Indian breeds of buffaloes. Sahiwal is a breed of cow, not a buffalo.

Question 3 · Assertion and reason

Assertion (A): A tick that sucks the blood of a dog for days is a parasite and not a predator.
Reason (R): A predator catches and kills its prey for food, while a parasite lives on its host and gains food at the host’s cost. [1]

✓ A is true: the tick lives on the dog and feeds on its blood without killing it, so the tick gains and the dog (the host) is at a loss. R is true and explains A: a predator kills its prey for food, whereas a parasite gets free lodging and meals at the cost of its host.

Also free: ICSE Class 8 Biology Chapter Worksheet →

Also free: ICSE Class 8 Biology Chapter Mind Map →

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