التعريف: A 1D measurement of a single cell along its longest axis. Typically, this is the distance along a straight line connecting the anterior-most point and the posterior-most point.
التعريف: A 1D measurement of a single cell. Typically, this is the distance along a straight line connecting the left-most part of the cell to the right-most part of the cell. It is perpendicular to the length axis and the depth axis.
التعريف: An aquatic biome that comprises systems of open-ocean and unprotected coastal habitats, characterized by exposure to wave action, tidal fluctuation, and ocean currents as well as systems that largely resemble these. Water in the marine biome is generally within the salinity range of seawater: 30 to 38 ppt.
التعريف: position of an organism in a food web. May be described verbally with descriptors including primary producer, herbivore or carnivore. If described numerically, 1 indicates a primary producer, 2 a herbivore, and so on up the food web.
