Examlex
How many atoms of nitrogen are in 10 g of NH4NO3?
Gills
Respiratory organs in certain aquatic organisms, allowing them to extract oxygen from water.
Gases
Substances that are in the state of matter characterized by having neither a defined volume nor shape, expanding to fill their container.
Terrestrial
Terrestrial refers to things relating to the Earth or living or growing on land as opposed to water or air.
Aquatic Environments
Natural water bodies like rivers, lakes, and oceans that are habitats for a wide range of organisms.
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