Kramizo
Log inSign up free
Home › CIE IGCSE Co-ordinated Science (Double Award) › Inheritance, Variation and Ecology
CIE · IGCSE · Co-ordinated Science (Double Award)

Inheritance, Variation and Ecology
Practice Questions

40 CIE IGCSE Co-ordinated Science (Double Award) questions on Inheritance, Variation and Ecology, each with instant feedback and a full examiner-style mark scheme.

⚡ Start Quiz on Inheritance, Variation and Ecology →

Try 2 sample questions on Inheritance, Variation and Ecology

Question 1 · 1 mark · Difficulty 1/3

Which statement correctly describes the role of mitosis in a multicellular organism?

  1. It produces two genetically identical daughter cells
  2. It produces four genetically identical daughter cells
  3. It produces two daughter cells with half the chromosome number
  4. It produces four daughter cells with half the chromosome number
Show answer & explanation
✓ Answer: A — It produces two genetically identical daughter cells
Award 1 mark. Mitosis gives two daughter cells, each identical to the parent with the full chromosome number. Four cells and half the chromosome number are features of meiosis.
Question 2 · 1 mark · Difficulty 1/3

Which of the following best describes the role of decomposers in an ecosystem?

  1. They convert light energy into chemical energy in organic molecules
  2. They capture carbon dioxide from the air and store it in biomass
  3. They feed on living animals and transfer energy up the food chain
  4. They break down dead organisms and return mineral ions to the soil
Show answer & explanation
✓ Answer: D — They break down dead organisms and return mineral ions to the soil
Award 1 mark. Bacteria and fungi break down dead material and release mineral ions for plants to absorb. Converting light energy and storing carbon dioxide are what producers do, and feeding on living animals describes predators.
⚡ Start a Quiz on Inheritance, Variation and Ecology →
20 questions · 25 min · free

CIE IGCSE Co-ordinated Science (Double Award): Inheritance, Variation and Ecology FAQ

Is Kramizo free for CIE IGCSE students preparing for Co-ordinated Science (Double Award)?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Inheritance, Variation and Ecology practice with other Co-ordinated Science (Double Award) topics or even switch to a totally different CIE subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Inheritance, Variation and Ecology questions aligned to the official CIE IGCSE Co-ordinated Science (Double Award) syllabus?
Every question is written against the published CIE IGCSE Co-ordinated Science (Double Award) specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real CIE paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from CIE.
How is Inheritance, Variation and Ecology typically tested on CIE IGCSE Co-ordinated Science (Double Award) papers?
Inheritance, Variation and Ecology appears across multiple question types on real CIE IGCSE Co-ordinated Science (Double Award) papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

Lock in Inheritance, Variation and Ecology before exam day.

Start practising in 30 seconds — no card required.

⚡ Start Quiz Free →