How does fever indicate that your body's immune system is doing its job? fever increases white blood cell production. fever raises the body's temperature to destroy harmful substances. fever triggers inflammation. fever causes the secretion of hormones that fight harmful substances.

Ans.

Fever shows an elevated body temperature due to increase in temperature set point of body. Fever is a part of immune response as it destroys harmful pathogens or their components by providing unfavorable environment for them. Many pathogenic viruses and bacteria are temperature sensitive and they cannot survive in high temperature.

Thus, the correct answer is 'option). fever raises the body's temperature to destroy harmful substances.'

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the answer is yes, they are born/created, then they grow to their limit then produce offspring, then die.