<span>Both industries need to become more customer-focused. Though their focus on profits is understandable, the decline in profits will continue if consumers see that the product they are receiving is lackluster. People drive or take buses or trains more often than they fly because flying has become so inconvenient and expensive. People hold on to cars well past their expiration dates because cars are so expensive and car salesmen are too pushy.</span>
<span>There are two common types: General Obligation Bonds and Revenue Bonds.
GOB: Issued by cities, states or countries and are not primarily secured by assets. The issuer can tax all who apply (citizens, residents, etc) for the bondholders.
RB: Are NOT backed by the government and come from a specific source such as the toll paid for driving on a toll road.</span>
Here are some examples for you .
Commensalism Parasitism Mutualism <span>Eendosymbiosis and ectosymbiosis
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