1- Which of the following is important to growth, the healing of wounds, and in the development of male sex glands:
V) chromium
W) iodine
X) iron
Y) manganese
Z) zinc

2- Which of the following plays an important role in the metabolism of glucose:
V) chromium
W) iodine
X) iron
Y) manganese
Z) zinc

3- Which of the following aids in formation of healthy bones, a healthy nervous system, and reproduction:
V) chromium
W) iodine
X) iron
Y) manganese
Z) zinc

4- Which of the following is important for binding oxygen molecules to red blood cells:
V) chromium
W) iodine
X) iron
Y) manganese
Z) zinc

5- A deficiency of which of the following leads to enlargement of the thyroid gland, a condition known as goiter:
V) chromium
W) iodine
X) iron
Y) manganese
Z) zinc

What you think are the answers? Those are direct questions... and you have to know the purpose of each single element in the body. I can't see how we can help you unless you learn your lessons...