System realm sorts species by the broad kind of environment they belong to, such as terrestrial, freshwater or marine. Wikipedia notes the giant panda lives "in six montane regions," entirely on land, placing it firmly in the terrestrial realm rather than a freshwater or marine one. This dimension groups species that depend on the same broad kind of environment.
Facts
Comparison
Reproductive Mode System (Realm)
Sources
1. Wikipedia: Gymnosperm
WikipediaGymnosperm, lead sectionQuote, Gymnosperm, lead section
a group of woody, perennial seed-producing plants, typically lacking the protective outer covering which surrounds the seeds in flowering plants
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