The inter-tidal zone refers to an area that is under water during a high tide and exposed to the air at low tides. Organisms living in the inter-tidal zone must be adapted to living in an extreme environment. They must be able to survive for sometime without water and in water that can be high or low in salinity. The nearshore zone is always under water and is the area where waves can break in their approach to the shore. Organisms here are adapted to living completely submerged in water.
Taxonomy<span> produces a hierarchy of groups of organisms;A </span>phylogenetic tree<span> is a hypothesis that depicts the evolutionary..
</span>Cladistics <span>is an approach to </span>biological classification<span> in which </span>organisms<span> are categorized based on shared derived characteristics that can be traced to a group's </span>most recent common ancestor<span> and are not present in more distant ancestors. Therefore, members of a group are assumed to share a common history and are considered to be closely related.</span><span>
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