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Two monitoring sites have been established in Myanmar through a combination of a DAPTF / CI seed grant I was awarded , and private funds raised by George Zug . A - In the air-breathing pulmonates the interior of the mantle cavity is converted into a lung and a pumping mechanism for renewal of air is established . People tend to categorize snakes as either venomous or harmless , but , as colubrids demonstrate , the reality is a continuum , from completely harmless , to mildly venomous , to deadly . When an agency does not deem a change in existing legislation , regulations , or policies to be desirable , it will provide a justification for retaining the existing non - conforming legislation or policies in its budget submission to OMB at the request of the budget examiner . Such requests will identify the modification ( s ) or waiver ( s ) requested , and also will state the reasons for the request and the time period for which the exception is required . There may be one to many ( in some cases , 100 's ) of slides that were made from material of a single collection , or accession number .