WebAug 21, 2024 · Classification is based on duration: (i) Acute disease are the diseases that last only for a short duration of time without posing adverse effects on the health. E.g. cough and cold, typhoid, malaria, cholera. (ii) Chronic diseases are the diseases that last for prolonged period of time with drastic effects on health. WebNCERT Solutions for Class 9 Science Chapter 13 Multiple Choice Questions. Choose the correct option: 1. The disease that affects our lungs is. (a) AIDS (b) rabies. (c) polio (d) …
CBSE Class 9 Science, Why Do We Fall Ill: Chapter …
WebFeb 15, 2024 · Pathogens like virus, bacteria, fungi, protozoans or worms causes diseases. These are called intermediate cause. Lack of proper nutrients. Heredity and genetic disorder. Lack of proper treatment and … WebFree PDF Download - Best collection of CBSE topper Notes, Important Questions, Sample papers and NCERT Solutions for CBSE Class 9 Biology Why do we fall ill. The entire NCERT textbook questions have been solved by best teachers for you. dailymotion mix banda ms
Class 9 Science (Biology) Chapter 13 Why Do We Fall Ill Full ...
WebContributory cause: The secondary factors which led these organisms to enter our body are called contributory causes. For example, dirty water, unclear. surroundings, contaminated food, improper nourishment, poverty, poor standard of living, etc. Diseases may be due to infectious and non-infectious causes. WebOne’s economic condition can also be instrumental in determining a person’s well-being. We could fall ill due to compromises in our immune system, this can also give rise to various autoimmune diseases. Mental health has an impact on physical health. For instance, clinical depression can cause loss of appetite and weight loss. WebThe chapter Why Do We Fall Ill? covers the idea of health and illnesses in great detail in relation to the aforementioned facts. The importance of health for the human body is extensively covered in this chapter. By using examples from real-world situations and a few exercises, it clarifies how personal and social concerns affect health. biology edexcel gcse past papers higher