How does bronchitis affect the respiratory system? Write response in paragraph form.

Bronchitis is the respiratory disorder in which the lining of bronchiole get swells and inflamed.

Due to the inflammation, bronchial tubes start producing excess mucus which block the airways between trachea and lungs. This cause wet cough. It may be mild or chronic. In severe conditions, respiratory system get highly damages resulting in wheezing, cough, chest pain and shortness of breath.

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u

the correct answer is 2 and 4