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worldgen:planets:lifelevel [2018/01/14 10:56]
sam
worldgen:planets:lifelevel [2018/01/14 11:44] (current)
sam
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 The marker for [[./​LifeLevel/​Archaean]] worlds is the rise of [[:​worldgen:​commodity:​prokaryotes]],​ which are the first living organisms. They are very basic cellular life. Once they arise, they quickly come to dominate the ecosystem. They may be found in trace amounts on //Organic// worlds, but an //​Archaean//​ world will be dominated by //​Prokaryotes//​ or more complicated forms of life. The marker for [[./​LifeLevel/​Archaean]] worlds is the rise of [[:​worldgen:​commodity:​prokaryotes]],​ which are the first living organisms. They are very basic cellular life. Once they arise, they quickly come to dominate the ecosystem. They may be found in trace amounts on //Organic// worlds, but an //​Archaean//​ world will be dominated by //​Prokaryotes//​ or more complicated forms of life.
  
-Within a few tens of millions of years, these give rise to some form of [[:​worldgen:​commodity:​cyanobacteria]],​ which make use of photosynthesis for energy. Because they are so much more efficient, they quickly come to dominate the biosphere, and are probably dominant ​on most //​Archaean//​ worlds.+Within a few tens of millions of years, these give rise to some form of [[:​worldgen:​commodity:​cyanobacteria]],​ which make use of photosynthesis for energy ​and produce oxygen. Because they are so much more efficient, they quickly come to dominate the biosphere, and are probably dominant ​during the late stages of //​Archaean//​ worlds.
  
 +However, their production of oxygen changes the biosphere, and turns //​Archaean//​ worlds into [[./​LifeLevel/​Aerobic]] worlds.
 +
 +[[:​pcl:​EoGaian]] worlds are pre-Aerobic,​ with a mostly methane atmosphere. Once the life classification changes from //​Archaean//​ to //​Aerobic//,​ then terrestrial worlds is classes as [[:​pcl:​MesoGaian]].
 +
 +==== Metazoa ====
  
 With the rise of oxygen, so the [[./​LifeLevel/​Aerobic]] stage is reached. [[:​worldgen:​commodity:​plankton]] consumes smaller life forms, forcing the evolution of larger and more complex organisms. Larger varieties of algae becomes [[:​worldgen:​commodity:​seaweed]] and [[:​worldgen:​commodity:​jellyfish]] evolve. Eventually, the arrival of [[:​world:​commodity:​simple marine]] organisms, such as starfish, sea urchins and worms marks the last stages of the Aerobic classification. With the rise of oxygen, so the [[./​LifeLevel/​Aerobic]] stage is reached. [[:​worldgen:​commodity:​plankton]] consumes smaller life forms, forcing the evolution of larger and more complex organisms. Larger varieties of algae becomes [[:​worldgen:​commodity:​seaweed]] and [[:​worldgen:​commodity:​jellyfish]] evolve. Eventually, the arrival of [[:​world:​commodity:​simple marine]] organisms, such as starfish, sea urchins and worms marks the last stages of the Aerobic classification.
worldgen/planets/lifelevel.1515927405.txt.gz · Last modified: 2018/01/14 10:56 by sam