Cnidaria — Temporal range: 580–0 Ma … Wikipedia
Cnidaria — Nesseltiere Seeanemone (Actiniaria) und Lederkoralle (Alcyonacea) Systematik Domäne … Deutsch Wikipedia
Nesseltier — Nesseltiere Seeanemone (Actiniaria) und Lederkoralle (Alcyonacea) Systematik Domäne … Deutsch Wikipedia
Nesseltiere — Seeanemone (Actiniaria) und Lederkoralle (Alcyonacea) Systematik Domäne: Eukaryoten (Eucaryota) … Deutsch Wikipedia
polyp — polypous, adj. /pol ip/, n. 1. Zool. a. a sedentary type of animal form characterized by a more or less fixed base, columnar body, and free end with mouth and tentacles, esp. as applied to coelenterates. b. an individual zooid of a compound or… … Universalium
Evolutionary history of life — Although evidence of early life is scarce and often difficult to interpret, it appears that life appeared on Earth relatively soon (on the geologic time scale) after the planet had cooled enough for liquid water to be present. The dominant theory … Wikipedia
animal — animalic /an euh mal ik/, animalian /an euh may lee euhn, mayl yeuhn/, adj. /an euh meuhl/, n. 1. any member of the kingdom Animalia, comprising multicellular organisms that have a well defined shape and usually limited growth, can move… … Universalium
Nerve net — For the album by Brian Eno, see Nerve Net (album). Nettle Jelly A nerve net is a type of simple nervous system that is found in members of the cnidaria, ctenophora, and echinodermata phyla. Nerve nets consist of interconnected neurons lacking a… … Wikipedia
reproductive system, animal — Introduction any of the organ systems by which animals reproduce. The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… … Universalium
Annelid — Temporal range: Early Ordovician–Recent[1] … Wikipedia