Level: JHS, Basic 7 | Subject: Integrated Science | Strand: Cycles | Topic: Life Cycle of Organisms (The Housefly)
Read the summary notes first, then try these questions. Go back to the summary notes for this topic.
Part A has 20 tick-box questions. Part B has 5 essay questions with a marking guide at the bottom.
Test Yourself: 20 Objective Questions
Tick one answer for each question, then press Review answer. If your answer is wrong, it will be marked first, then the correct answer will show in green.
1. A life cycle is
2. The housefly passes through how many stages in its life cycle?
3. Which is the correct order of the life cycle of the housefly?
4. The larva of the housefly is called a
5. Houseflies lay their eggs in
6. The maggot is
7. The stage in which the maggot forms a hard brown case is the
8. Which stage of the housefly does not feed?
9. The stage that can fly is the
10. The whole life cycle of the housefly in warm weather takes about
11. Houseflies can spread diseases because
12. Which disease can be spread by houseflies?
13. Which disease is NOT spread by houseflies?
14. Trachoma is a disease of the
15. The best way to prevent flies from landing on food is to
16. Refuse should be kept in covered bins so that
17. A good way to prevent flies from breeding in toilets is to use
18. Which action helps to control houseflies?
19. We should wash our hands with soap before eating because
20. A female housefly lays eggs
Essay Questions
- (a) What is a life cycle? (b) Name the four stages in the life cycle of the housefly in the correct order. (6 marks)
- Describe what happens at each stage of the life cycle of the housefly. (8 marks)
- Draw and label the life cycle of the housefly. (4 marks)
- Explain how the housefly spreads diseases and name three diseases it can spread. (6 marks)
- State six ways by which we can reduce the harmful effects of houseflies in our homes and communities. (6 marks)
Essay Questions: Marking Guide for Teachers and Parents
- (a) The series of changes an organism goes through from birth to adulthood and reproduction (2). (b) Egg, larva (maggot), pupa, adult (4).
- Egg: laid in batches in rubbish or dung (2). Larva or maggot: legless, feeds and grows in rotting matter (2). Pupa: hard brown case, no feeding, changes into an adult (2). Adult: flies, mates and the female lays eggs (2).
- A neat circular diagram with labelled egg, larva, pupa and adult and arrows in the correct direction (1 mark per correct stage).
- Germs from dirt and faeces stick to the legs and body of the fly and are left on the food it lands on; it also vomits on food (3). Diseases: cholera, typhoid fever, dysentery, diarrhoea, trachoma, any three (3).
- Any six: cover food, covered refuse bins, clean toilets, clear gutters, keep surroundings clean, fly traps and nets, wash hands, wash fruits and vegetables, safe use of insecticides (1 mark each).
Education Always (education.inspiringalways.com). Original practice questions, not official WAEC or BECE questions.