Is a common test in the detection of testicular cancer.

Blood tests.

Explanation:

It is common to use blood tests to diagnose testicular tumors. Most testicular cancers produce substances that reach the blood and can be detected by blood tests. Such examination should always be performed at the beginning of patient care, and are very important in the diagnosis, quantification of the degree of disease impairment and serve as a parameter for follow-up after treatment. The major substances released into the blood indicating testicular cancer are alpha-fetoprotein (AFP) and human chorionic gonadotropin (GCH).

it takes hundreds of years to become stable.

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4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."