recycled to the red bone marrow.
No. Most plastics are made of compounds and polymers that are not metabolized or degraded by most organisms, although some special organisms have been developed to attack certain plastics. Most plastics are degraded by sunlight.
No
Degraded System Performance
If they are not tears, then most commonly excreted from the eyes are mucous. This can be a result of allergies if you see a lot of them.
Most water soluble vitamins are excreted through urine. B 12 is the only water soluble vitmain that is excreted through feces.
The most important protein involved in the transport of carbon dioxide by blood is hemoglobin. Hemoglobin binds to carbon dioxide in red blood cells and helps transport it from tissues to the lungs, where it can be exhaled.
The three nitrogenous wastes excreted by animals are ammonia (most toxic, released by aquatic animals), urea (less toxic, excreted by mammals), and uric acid (least toxic, excreted by birds and reptiles).
iron
Carbon dioxide is excreted from the lungs.
No, Unlike oxygen, Carbon Dioxide is mostly disolved in the blood plasma only about 23% is disolved in hemoglobin
Most drugs are either excreted in the urine (via the kidneys) - particularly if they are very water soluble - or sometimes metabolized - mostly in the liver.
Most drugs are broken down in the liver through a process called drug metabolism. This process involves enzymes in the liver converting the drug into metabolites that can be eliminated from the body. The metabolites are then excreted through the kidneys in the urine.