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"I just love scanning for lifeforms. Lifeforms... you tiny little lifeforms... you precious little lifeforms... where are you?"
"Our mission as Starfleet officers is to seek out new lifeforms so we can learn about one another."
– Miles O'Brien, 2369 ("Captive Pursuit")
DNA

DNA, the biological foundation for many lifeforms

Lifeform, organism, or life-energy force was a discrete entity generally considered to be "alive". The study of lifeforms was known as biology, and, when dealing with alien lifeforms, could be further sub-categorized into xenobiology and xenology.

Preanimate matter was considered to be one of the building blocks of life. (Star Trek II: The Wrath of Khan, VOY: "Body and Soul") When Q took Jean-Luc Picard to the point of primordial Earth, at the moment when life was about to form there for the very first time, he described the event happening when "a group of amino acids are about to combine and form the first protein, the building blocks of what you call life." (TNG: "All Good Things...")

Traits that could indicate whether something was a lifeform included the capacity to respond to the environment, respirate, reproduce, grow and develop, move, secrete, and excrete. Regardless, these criteria were not universally applicable, as organic, inorganic, artificial, and non-corporeal entities have all been considered lifeforms. (TNG: "Datalore"; TNG: "Home Soil"; TNG: "Elementary, Dear Data"; TNG: "The Measure Of A Man") In 2269, Spock noted, in addition to the crew of the USS Enterprise and their Klingon guests that "[t]here appear to be more life-energy units on board than can be accounted for by the presence of [both crews]," something he considered to be "a considerable discrepancy", and in fact was the first indication of the non-corporeal Beta XII-A entity aboard the ship. (TOS: "Day of the Dove")

Most space-faring civilizations built devices to remotely detect and locate known lifeforms. Starship sensors and tricorders were the primary instruments used, as they could identify or localize blood type, heart rate or metabolic setup. Typically, only organic lifeforms were detected. (TNG: "Home Soil")

There are incredible similarities between the lifeforms on different worlds in the Star Trek universe. A probable explanation for this may be the existence of the ancient humanoids DNA during evolution.

According to Captain Jonathan Archer, over seventy percent of the organisms on Earth are bacteria. (ENT: "The Andorian Incident")

Types Edit

Starfleet lifeform classification Edit

The class-5 type lifeform may refer to humanoids.

See also Edit

External links Edit

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