[{"id": 1, "type": "written_response", "question": "Explain the scientific concept covered in \"Conservation Practice\" and provide a real-world example.", "correct_answer": null}, {"id": 2, "type": "true_false", "question": "The scientific method always begins with making an observation or asking a question.", "correct_answer": "True"}, {"id": 3, "type": "written_response", "question": "Explain the scientific concept covered in \"Conservation Practice\" and provide a real-world example.", "correct_answer": null}, {"id": 4, "type": "true_false", "question": "The scientific method always begins with making an observation or asking a question.", "correct_answer": "True"}, {"id": 5, "type": "multiple_choice", "options": ["Nucleus", "Mitochondria", "Ribosome", "Cell membrane"], "question": "What organelle is known as the \"powerhouse of the cell\"?", "correct_answer": "Mitochondria"}]