Skip to main content
DigiTransact Mastermind
Science•JHS Acids, Bases & Ecosystems

Ecosystems and food chains

Junior High 6 questions
AI-drafted from platform data — specialist review scheduledBy DigiTransact Mastermind editorial teamLast updated
Start practice

What ecosystems and food chains means

You learn how living things in a habitat depend on one another for food and energy. This helps you understand why plants, animals and decomposers all have different roles in nature.

What you will practise

  • Identify producers in simple food chains
  • Choose consumers that eat plants or animals
  • Match predators with the food they eat
  • Recognise decomposers that break down dead matter
  • Follow energy flow from one organism to another

Before you start

You should already know the names of common plants and animals in a habitat. It also helps to understand what living and non-living things are.

Not confident yet? Work through Acids, bases and indicators first.

Worked example

One question from this skill's own question bank, shown with its full working.

Question

In a food chain, green plants are the:

  • consumers
  • producers
  • decomposers
  • predators
Answer: producers

Working: Plants make their own food, so they are producers.

Common mistakes to avoid

  • Calling all green organisms consumers; remember green plants make their own food.
  • Confusing carnivores with herbivores; check whether the animal eats meat or plants.
  • Forgetting decomposers; fungi and bacteria break down dead plants and animals.
  • Mixing up arrows in food chains; they show energy moving from food to eater.

Curriculum and exam alignment

Ghana GES Basic 7 to 9 syllabusBECE

This topic normally appears in Junior High School science when learners study living things, habitats and simple ecological relationships. It supports BECE preparation by building skills in reading food chains and explaining how energy moves through an ecosystem.

Curriculum notes are a general guide to where this work normally sits. Always check the syllabus your school or examination body is currently using.

Related skills

Other JHS Acids, Bases & Ecosystems skills in Science, at the same point in the course.

Other Science topics

Living Things Around UsSHS SciencesUniversity ScienceBiologyChemistryPhysics

Related study guides

Exam Preparation
How to Build a BECE Study Plan That Actually Works (2026 Guide)

The BECE decides SHS placement for every JHS graduate in Ghana. Here is a realistic, week-by-week st…

7 min read

Exams that assess ecosystems and food chains

Junior High work on this skill feeds directly into these exam papers. Each page lists the Science topics that appear on it.

BECEBECE practice questionsFree BECE practice across the subjects at this stage, with worked answers.GESGES practice questionsFree GES practice across the subjects at this stage, with worked answers.

How this page was produced

This text was drafted with AI assistance from the questions and topics already stored on the platform. A subject-specialist review is scheduled but has not yet been recorded, so we do not claim it here.

Written by
DigiTransact Mastermind editorial team
Human review
Not yet. Subject-specialist review is scheduled; this page will say so once it has happened. See which content receives human review.
Last updated

Spotted a mistake on this page? Report a content correction and we will check it against the source. You can also read our editorial policy and how we use AI and where it falls short.

All Science skills

Practise ecosystems and food chains

6 questions with a worked answer after every attempt, and a SmartScore that tracks how close you are to mastery.

Start practice