Year 9 Sem

Notes

Year 9 Semester 2 Exam Practice Booklet Subjects: Science | Humanities | English | Mathematics SCIENCE Section A – Multiple Choice 1. Which of the following best describes meiosis? A. Cell division producing identical cells B. Cell division producing sex cells with half the chromosomes C. Cell repair and growth D. Fertilisation of gametes 2. In humans, fertilisation normally occurs in the A. uterus B. ovary C. fallopian tube D. cervix 3. Which process removes carbon dioxide from the atmosphere? A. Respiration B. Photosynthesis C. Combustion D. Decomposition 4. Which is the largest carbon store on Earth? A. Atmosphere B. Forests C. Deep ocean and sedimentary rock D. Living animals 5. What is the main cause of the enhanced greenhouse effect? A. Increased volcanic activity B. Deforestation and burning fossil fuels C. Solar radiation changes D. Decrease in methane Section B – Short Answer 6. Distinguish between internal and external fertilisation. 7. Explain why offspring from sexual reproduction show variation. 8. State two key features of asexual reproduction. 9. Outline two human activities that increase atmospheric carbon dioxide. 10. Identify two consequences of global warming and...