Plunge pool softer or fractured rock has been eroded back to a knickpoint, water continues to bombard its base. Because this rock is often less resistant than overlying strata, the water from the higher elevation continues eroding downward until an equilibrium is achieved. A somewhat similar bowl-shaped feature developed by flowing water, as opposed to falling water, is known as a scour hole. These occur both naturally and as a result of bridge building. Plunge pool A plunge pool (or plunge basin or waterfall lake) is a deep depression in a stream bed at the base of a waterfall or shut-in. It
Sequence feature variant type the conserved nature of the functional regions and the precise change in the actual amino acid, the Sequence Feature Variant Type is defined. A sequence feature is basically a collection of amino acids within a protein, where the collection may be a continuous range or some discrete residues. Most sequence features are from experimental results, but there are some that are from computational analysis. For each sequence feature, the variations exist between many proteins from different related species. The variant types define the exact amino acid at each location for a feature. The larger the mutation at each location for