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: Cnidaria
WikipediaCnidaria, Reproduction sectionQuote, Cnidaria, Reproduction section
All known cnidarians can reproduce asexually by various means, in addition to regenerating after being fragmented. Hydrozoan polyps only bud, while the medusae of some hydrozoans can divide down the middle.
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