Kramizo
Log inSign up free
Home › CXC CSEC Human and Social Biology › Practice Paper
CXC · CSEC · Human and Social Biology

Free CXC CSEC Human and Social Biology
Practice Paper

8 mixed-difficulty practice questions in the style of real CXC CSEC papers — answers, mark-scheme-style explanations, and the official exam structure all on one page.

Take a Mini Mock →

What the real CXC CSEC Human and Social Biology paper looks like

Paper 1 (Section A)
60 multiple-choice questions, 1 mark each. 75 minutes. Tests knowledge across the whole syllabus.
Paper 2
Structured short-answer + 1 extended response question. Section A is compulsory; Section B has a choice. Approximately 2 hours 10 minutes.
School-Based Assessment (SBA)
Coursework component graded by the teacher, externally moderated. Worth ~20-30% of the final grade depending on subject.
Total exam time: ~3.5 hours across Paper 1 and Paper 2 sittings.
Grading: Grades: I (highest) to VI (lowest). A grade of III or above is typically required for further study.

Mini practice paper: 8 questions

Mixed-difficulty questions from across the Human and Social Biology syllabus. Tap "Show answer" after each to check yourself.

Q1 · Difficulty 1/3

How does improper garbage disposal affect health in the Caribbean?

  1. It reduces flooding
  2. It has no effect
  3. It creates breeding sites for mosquitoes and rats, spreading diseases like dengue and leptospirosis
  4. It improves soil quality
Show answer & explanation
✓ Answer: C — It creates breeding sites for mosquitoes and rats, spreading diseases like dengue and leptospirosis
Improperly disposed garbage collects water where Aedes mosquitoes breed (dengue, Zika), attracts rats (leptospirosis), and contaminates water supplies (gastroenteritis).
Q2 · Difficulty 1/3

What is the importance of immunisation programmes?

  1. They replace good hygiene
  2. They are unnecessary
  3. They protect individuals and communities by creating herd immunity against dangerous diseases
  4. They only help adults
Show answer & explanation
✓ Answer: C — They protect individuals and communities by creating herd immunity against dangerous diseases
Immunisation programmes vaccinate large portions of the population, creating herd immunity — when enough people are immune, the disease cannot spread easily, protecting vulnerable individuals who cannot be vaccinated.
Q3 · Difficulty 1/3

DDT, once sprayed widely on Caribbean farms and against mosquitoes, is an example of a:

  1. Fertiliser
  2. Pesticide
  3. Vaccine
  4. Hormone
Show answer & explanation
✓ Answer: B — Pesticide
Award 1 mark. It is a chemical applied to kill insect pests. It is persistent, which is why it accumulates in food chains long after spraying stops.
Q4 · Difficulty 1/3

A sample of bread develops a green powdery coating after being left in a warm, humid cupboard for five days. Which organism is MOST likely responsible?

  1. Saccharomyces yeast
  2. Clostridium bacteria
  3. Salmonella bacteria
  4. Penicillium mould
Show answer & explanation
✓ Answer: D — Penicillium mould
The green powdery coating is characteristic of Penicillium mould, which commonly grows on bread in warm, humid conditions. Salmonella and Clostridium are bacteria and do not produce visible powdery coatings. Saccharomyces is a yeast used in bread-making and does not produce green surface growth.
Q5 · Difficulty 1/3

What is the function of the nucleus?

  1. Makes proteins
  2. Produces energy
  3. Contains DNA and controls cell activities
  4. Stores water
Show answer & explanation
✓ Answer: C — Contains DNA and controls cell activities
The nucleus contains the genetic material (DNA) and controls all cell activities by regulating gene expression and protein synthesis.
Q6 · Difficulty 1/3

What is the importance of family planning?

  1. It allows individuals to decide the number and spacing of children, improving family health and economic stability
  2. It is only about preventing pregnancy
  3. It is only for women
  4. It is not important
Show answer & explanation
✓ Answer: A — It allows individuals to decide the number and spacing of children, improving family health and economic stability
Family planning enables people to make informed choices about reproduction. Benefits include better maternal and child health, reduced poverty, improved education opportunities, and lower infant mortality.
Q7 · Difficulty 1/3

A health officer in Trinidad is analysing population data and notices that the number of births per 1000 people in a year is 18. What term describes this measurement?

  1. Death rate
  2. Birth rate
  3. Growth rate
  4. Fertility rate
Show answer & explanation
✓ Answer: B — Birth rate
Award 1 mark for identifying birth rate as the number of live births per 1000 people per year. A is incorrect — death rate refers to deaths, not births. C is incorrect — growth rate is the difference between birth and death rates. D is incorrect — fertility rate specifically measures births per women of reproductive age, not per total population.
Q8 · Difficulty 1/3

What is a habitat?

  1. A type of adaptation
  2. An entire ecosystem
  3. The place where an organism lives
  4. A food chain
Show answer & explanation
✓ Answer: C — The place where an organism lives
A habitat is the natural environment or place where an organism lives. It provides the organism with food, shelter, and conditions needed for survival.
Build a 30-question timed mock →
Free account · Instant marking

CXC CSEC Human and Social Biology FAQ

What does the CXC CSEC Human and Social Biology exam look like?
The CXC CSEC Human and Social Biology exam is structured across 3 components. Paper 1 (Section A): 60 multiple-choice questions, 1 mark each. 75 minutes. Tests knowledge across the whole syllabus. Paper 2: Structured short-answer + 1 extended response question. Section A is compulsory; Section B has a choice. Approximately 2 hours 10 minutes. School-Based Assessment (SBA): Coursework component graded by the teacher, externally moderated. Worth ~20-30% of the final grade depending on subject. Total exam time: ~3.5 hours across Paper 1 and Paper 2 sittings.
Can I download a free CXC CSEC Human and Social Biology past paper?
Real CXC past papers are published directly by CXC on their official website. Kramizo doesn't redistribute copyrighted past papers, but we do generate free AI-written practice papers in the exact same style — same command words, same difficulty tier, same mark conventions. Use this practice paper as warm-up, then time yourself on official past papers before exam day.
How is CXC CSEC Human and Social Biology graded?
Grades: I (highest) to VI (lowest). A grade of III or above is typically required for further study. Kramizo's practice questions are tagged with difficulty 1-3 mapping roughly to the lower, middle, and top grade boundaries you'll encounter in the real exam.