The two main types of fermentation are alcoholic fermentation and lactic acid fermentation. In an alcoholic fermentation, the main product of this process is ethyl alcohol. Lactic acid on the other hand has lactic acid as its main product. When muscle cells run out of oxygen, lactic acid fermentation would commonly take place.<span> </span>
Folds are bends in rocks whereas faults are displacements of rocks that were once connected to a fault line.
Identify the hormone represented by each letter, in this case, the letter A represents the thyroid glands and letter B represents the parathyroid gland.
<h3>What does the thyroid do?</h3>
The thyroid is a butterfly-shaped gland that is located in the anterior part of the neck, hugging the windpipe. The hormones produced by it act on our body and metabolism from our fetal formation to senility.
<h3>What is the function of the parathyroid?</h3>
The parathyroids are four glands located in the neck, behind the thyroid, whose function is to control the levels of calcium in the blood through the production of parathyroid hormone (PTH).
These two organs have essential functions for the human body responsible for metabolism.
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