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Mind Map: Diseases: Cause And Control | Biology Class 9 ICSE

The document Mind Map: Diseases: Cause And Control | Biology Class 9 ICSE is a part of the Class 9 Course Biology Class 9 ICSE.
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FAQs on Mind Map: Diseases: Cause And Control - Biology Class 9 ICSE

1. What are the common causes of diseases?
Ans. Common causes of diseases include pathogens (such as bacteria, viruses, fungi, and parasites), genetic factors, environmental influences (like pollution and toxins), nutritional deficiencies, and lifestyle choices (such as smoking, poor diet, and lack of exercise). These factors can lead to various health conditions, impacting different systems of the body.
2. How can diseases be prevented?
Ans. Diseases can be prevented through various means, including vaccination, maintaining good hygiene, ensuring a balanced diet, exercising regularly, and avoiding harmful habits like smoking and excessive alcohol consumption. Public health initiatives and education also play crucial roles in disease prevention by raising awareness and promoting healthy practices.
3. What is the role of vaccines in disease control?
Ans. Vaccines play a vital role in disease control by stimulating the immune system to recognize and fight specific pathogens. By introducing a harmless component of the disease-causing organism, vaccines prepare the body to respond quickly if exposed in the future, significantly reducing the incidence of infectious diseases and protecting public health.
4. What are some historical examples of successful disease control?
Ans. Historical examples of successful disease control include the eradication of smallpox through a global vaccination campaign initiated in the late 20th century, and the significant reduction of polio cases due to widespread vaccination efforts. These initiatives demonstrate the effectiveness of coordinated public health strategies in controlling infectious diseases.
5. What are the impacts of lifestyle choices on disease development?
Ans. Lifestyle choices significantly impact disease development. Poor dietary habits can lead to conditions such as obesity, diabetes, and heart disease. Lack of physical activity increases the risk of chronic illnesses, while habits like smoking and excessive drinking are linked to various cancers and respiratory diseases. Making healthier choices can reduce these risks and improve overall well-being.
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