Define the term excretion. state an excretory product that is passed out trough the lungs.

outline the role of the liver in excretion. ​

Excretion is a process in which metabolic waste is eliminated from an organism. In vertebrates this is primarily carried out by the lungs, kidneys, and skin.

Carbon dioxide

The liver regulates most chemical levels in the blood and excretes a product called bile. This helps carry away waste products from the liver. All the blood leaving the stomach and intestines passes through the liver. The liver processes this blood and breaks down, balances, and creates the nutrients and also metabolizes drugs into forms that are easier to use for the rest of the body or that are nontoxic.

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what are the options

explanation:

its b. greenhouse gasses trap uv rays for heat so that the plants stay alive.