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the spontaneous, passive movement of water molecules from an area of higher water concentration (higher water potential) to an area of lower water concentration (lower water potential) across a differentially permeable membrane, until the concentration is the same in both regions.
small protrusions on the surface of mammalian teeth (premolars and molars), which help to grind...
mass extinction event of 65 million years ago, in which about 85% of all species on Earth died...
reactions in which smaller simpler molecules joint form larger,complex molecules
the clear colourless fluid that occurs in the spaces, such as the ventricles and central canal,...