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...efined [[nucleus (cell)|nuclei]] and with [[cell membrane]]s but no [[cell wall]]s. Sometimes [[human]]s (and perhaps other [[ellogy|ellogous]] [[race]]s) ...Euterran [[metabiont]]s to do without this feature. While the absence of cell walls means that animals have to resort to more complicated means to hold t

...several purposes: it stores chemicals, digests proteins, and preserves the cell's rigidity. ...sporophyte, and the male gametophyte comprising only a scant handful of [[cell]]s within dispersable grains called [[pollen]]. Other differences exist wi

...of fertilization, the [[embryo]] within the egg still comprises a single [[cell]], the vast majority of the egg's [[volume]] being taken up by the [[vitell ...lects their semisolitary nature. Roads and walkways tend to be lined by [[wall]]s or [[hedge]]s to block the surroundings and give the illution of isolati