Answer: third step, developing a hypothesis
Explanation: With respect to the scientific method, Macy is working on the <u><em>third step</em></u> of the method, namely, developing a <em><u>hypothesis</u></em>. The scientific method is a series of steps that investigators use to explore observations, to find cause and effect relationships, and answer a question. The six steps of the scientific method are observation, background research, developing a hypothesis, test it with experimentation, results of the experiment, and conclusion. In the first step, Macy has found interesting topics. She has done background research reading about these topics. Now she has to develop a hypothesis.
FDA (Food and Drug Administration) is the US government agency responsible for regulating medications.
Bartering is trading, in today's society we buy and sell using currenxy
why there is noticeable swelling in the front part of the neck of a person who has goiter is simply because <u>the thyroid glands are present in that position.</u>
A goiter is an enlargement of a person's thyroid gland. The thyroid gland is located right in front of the windpipe. The function of the thyroid gland is to produce and secrete hormones which are meant to regulate growth and metabolism
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Further Explanation</h2>
Most of the cases of goiter are classified as "simple" because it poses no damage to the thyroid gland.
Most goiters are not painful but large ones can result in cough and also result in difficulty in breathing or swallowing.
There are different types of goiter and these include
- Retrosternal goiter (it grows at the back of the breastbone)
- Nodular goiter (grow on the thyroid
- Diffuse smooth goiter (it occurs when all thyroid swells)
Goiter has symptoms and these include:
- Coughing
- A person may experience a tight feeling in his or her throat
- A swelling that is obvious at the bottom of the neck
- Difficulty in swallowing or breathing
Numerous conditions cause goiter, and these conditions are
- Iodine deficiency
- Autoimmune disease
- Hyperthyroidism
- Smoking
- Radiation therapy
- Hormonal changes
- Thyroid cancer
- Pregnancy
- Inflammation
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KEYWORDS:
- goiter
- swelling
- neck
- person
- inflammation
- thyroid gland
