The gills push the oxygen-poor water out through openings in the sides of the pharynx. Some fish, like sharks and lampreys, possess multiple gill openings. However, bony fish have a single gill opening on each side.This opening is hidden beneath a protective bony cover called an operculum.ost fish exchange gases using gills on either side of the pharynx (throat).
Cambridge Police Chief Tim Dwyer has been put on administrative leave, according to a posting on Facebook. The posting is on the City of Cambridge Information page; the page says it is administered by former City Council Member Howard Lewis. The chief âwas escorted out of City Hall on Friday.
By 1949, the department consisted of a police chief, assistant chief, four sergeants, four corporals and four officers. The department had two radio equipped squad cars and two radio equipped motorcycles. In 1949, Henry Morrow was appointed chief of police. During the 1950s the police department had sixteen officers.