Examlex
You've just signed a document for an insurance settlement,and you need to mail it back to the insurance company.However,you want to keep an electronic copy of it for yourself.Which device would best help you do this?
Hemoglobin
A protein in red blood cells that carries oxygen from the lungs to the body's tissues and returns carbon dioxide from the tissues back to the lungs.
Carbon Monoxide
A colorless, odorless, and toxic gas produced by incomplete combustion of carbon-containing materials, dangerous to humans and animals when inhaled.
Carbon Dioxide
Carbon dioxide is an invisible, scentless gas that results from the combustion of carbon and organic materials as well as the process of respiration. It occurs naturally in the atmosphere and is taken in by plants for the process of photosynthesis.
Respiratory Surfaces
The parts of organisms where gas exchange between the external environment and the internal tissues occurs, typically thin, moist, and highly vascularized for efficient diffusion of gases.
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