The thyroid scan and thyroid uptake provide information about the structure and function of the thyroid. The thyroid is a gland in the neck that controls metabolism, a chemical process that regulates the rate at which the body converts food to energy. top of page.
The mask, dubbed Triton, acts like a fish gill to extract oxygen from water so that the user can keep on breathing while under the sea. The scaly texture on the arms conceal small holes in the material where water is sucked in.
We don't won't to put the stopper on the flask just yet. There is about 25 mL of air (80% nitrogen & 20% oxygen) in the flask. The bubbles of oxygen that are forming will displace the air by pushing it out of the flask. Oxygen is a little more dense than air, so oxygen will stay closer to the surface of the water and push the air out of the flask. Wait about 2 minutes before placing the stopper onto the flask. That will give the newly created oxygen to push the most of the air out of the flask.