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Oxygen will diffusacross gill membranes into thbloobecause
Chemical Evolution
The process through which simple chemical compounds gradually transformed into more complex molecules, eventually leading to the emergence of life.
Salinity
The concentration of dissolved salts (e.g., sodium chloride) in a body of water.
Ultraviolet Radiation
A form of electromagnetic radiation with a wavelength shorter than that of visible light but longer than X-rays, which can have effects ranging from beneficial, like vitamin D synthesis, to harmful, like skin cancer.
Free Oxygen
Atomic or molecular oxygen not bound to any other elements, often referring to atmospheric oxygen that is available for respiration.
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