Symbiosis describes close interactions between two or more different species. There are four main types of symbiotic relationships: mutualism, commensalism, parasitism and competition. Symbiotic relationships are important because they are a major driving force of evolution.
Border Security. Exporters. Definition. For C-TPAT purposes, an exporter is defined as: A person or company who, as the principal party in interest in the export transaction, has the power and responsibility for determining and controlling the sending of the items out of the United States.
Importing is the purchasing side of trade and takes place when one region acquires goods or services from another region. The region that sells the goods or services is the exporter, whereas the region the buys the goods or services is the importer.