a Identify the type and name the tissue shown in the diagram above. b) What function does the above tissue
perform? c) Which connective tissue has great strength but limited flexibility?
16.(a) Why overcrowded and poorly ventilated areas are major factors in the spread of air borne diseases? (b) An active immune system sends many cells to the affected tissue to kill off the disease causing
microbes. Identify the process and mention its local and general effects?
(c) State one difference between acute and chronic diseases. Give one example for each
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Answer: 45 km is the total distance covered
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a:-catch the closer we are to the infected person. However, in closed areas, the droplet nuclei recirculate and pose a risk to everybody. Overcrowded and poorly ventilated housing is therefore a major factor in the spread of airborne diseases. Diseases can also be spread through water.
b:-An active immune system recruits many cells to the affected tissue to kill off the disease-causing microbes. This recruitment process is called inflammation. As a part of this process, there are local effects such a swelling and pain, and general effects such as fever
c:-Acute diseases are the diseases that affects an individual for short span of time. For example, typhoid, cold, cough etc. Chronic diseases are the diseases that persist for a long period of time. They develop over a time and does not appear suddenly.
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