Given a text passage, come up with an appropriate title for it. The title should accurately represent what the main focus of the passage is. The title of a passage may be present in the first few sentences of the passage and/or be referred to multiple times in the passage. The title should be 1-5 words long.

While the show initially enjoyed high ratings , the average rating of the show at the end of its first season dropped to 52nd out of 94 programs . Unhappy with the show 's ratings , NBC threatened to cancel the show during its second season . The show 's fan base , led by Bjo Trimble , conducted an unprecedented letter - writing campaign , petitioning the network to keep the show on the air . NBC renewed the show , but moved it from primetime to the `` Friday night death slot '' , and substantially reduced its budget . In protest Roddenberry resigned as producer and reduced his direct involvement in Star Trek , which led to Fred Freiberger becoming producer for the show 's third and final season . Despite another letter - writing campaign , NBC cancelled the series after three seasons and 79 episodes .
Star Trek

The Qin dynasty ( Chinese : 秦 朝 ; pinyin : Qín Cháo ; Wade -- Giles : Ch'in Ch'ao ) was the first dynasty of Imperial China , lasting from 221 to 206 BC . Named for its heartland of Qin , in modern - day Gansu and Shaanxi , the dynasty was founded by the Qin state and its founding emperor took the title Qin Shi Huang , the First Emperor of Qin . The strength of the Qin state was greatly increased by the `` Legalist '' reforms of Shang Yang in the fourth century BC , during the Warring States period . In the mid and late third century BC , the Qin state carried out a series of swift conquests , first ending the powerless Zhou dynasty , and eventually conquering the other six of the Seven Warring States . It is the shortest major dynasty in Chinese history , lasting only 15 years with two emperors , but the imperial system it inaugurated lasted , with interruptions and adaptation , until 1911 .
Qin dynasty

Aquatic respiration is the process whereby an aquatic animal obtains oxygen from water .

Aquatic respiration