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invisible, long-wave radiation emitted by the sun.
the process whereby substances dissolved in the blood (such as H+ ions, nitrogenous waste and...
(also called polymers) large, more complex molecules formed when monomers join together.
an organic compound that always contains the elements carbon, hydrogen, oxygen and nitrogen and...
(also called the carina) in birds is an extension of the sternum (breastbone) which runs along...