Bernstein, Aaron, Naturwissenschaftliche Volksbücher, Bd. 17-21, 1897

Table of handwritten notes

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        <div xml:id="echoid-div129" type="section" level="1" n="89">
          <p>
            <s xml:id="echoid-s3020" xml:space="preserve">
              <pb o="67" file="253" n="253"/>
              <emph style="sp">teilung</emph>
            . </s>
            <s xml:id="echoid-s3021" xml:space="preserve">Wie wir im Verlaufe der menſchlichen Geſchichte
              <lb/>
            eine immer weitergehende Arbeitsteilung erblicken, wie wir
              <lb/>
            ſehen, daß die in einem Gemeinweſen verrichteten Arbeiten ſich
              <lb/>
            immer ausſchließlicher auf die einzelnen Individuen verteilen,
              <lb/>
            ſo ſieht man in der Entwickelung des organiſchen Reiches das
              <lb/>
            gleiche Prinzip walten, indem die zum Leben notwendigen
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            Arbeiten immer weiter auf beſondere Organe ſpezialiſiert werden.
              <lb/>
            </s>
            <s xml:id="echoid-s3022" xml:space="preserve">Während ſo der Körper der allereinfachſt gebauten Lebeweſen
              <lb/>
            in allen ſeinen Teilen allen Lebensverrichtungen dient und
              <lb/>
            daher denn auch keine beſonderen Organe aufweiſt, ſondern
              <lb/>
            gänzlich ungegliedert und in allen Teilen gleich gebaut iſt,
              <lb/>
            tritt ganz allmählich eine Scheidung des Körpers in unter-
              <lb/>
            ſchiedene Teile und ſchließlich in auffällig abgegliederte Organe
              <lb/>
            ein, wie bei den höchſten Pflanzen mit ihren Wurzeln, Stengeln
              <lb/>
            und ihren mannigfaltigen Blattſorten, wodurch auf eine weit-
              <lb/>
            gehende Arbeitsteilung hingewieſen wird.</s>
            <s xml:id="echoid-s3023" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3024" xml:space="preserve">Form und Verrichtung (“
              <emph style="sp">Funktion</emph>
            “) der Organe ſtehen
              <lb/>
            alſo in unmittelbarſter Beziehung zu einander, wie den Teilen
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            einer Maſchine allen eine ganz beſtimmte Aufgabe zugewieſen
              <lb/>
            iſt, deren Erfüllung und Ineinandergreifen den zweckmäßigen
              <lb/>
            Gang der Maſchine ausmacht. </s>
            <s xml:id="echoid-s3025" xml:space="preserve">Mögen wir nun aber hin-
              <lb/>
            blicken, wohin wir wollen, ſo ſehen wir doch, daß es nur zwei
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            Hauptverrichtungen ſind, denen alle Arbeiten der Organismen
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            direkt oder indirekt dienen; </s>
            <s xml:id="echoid-s3026" xml:space="preserve">es ſind das:</s>
            <s xml:id="echoid-s3027" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3028" xml:space="preserve">1. </s>
            <s xml:id="echoid-s3029" xml:space="preserve">Thätigkeiten, die die
              <emph style="sp">Erhaltung des Einzelweſens</emph>
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            (
              <emph style="sp">des Individuums</emph>
            ) bedingen, und</s>
          </p>
          <p>
            <s xml:id="echoid-s3030" xml:space="preserve">2. </s>
            <s xml:id="echoid-s3031" xml:space="preserve">ſolche, die die
              <emph style="sp">Erhaltung der Geſchlechter</emph>
            (
              <emph style="sp">der
                <lb/>
              Generation</emph>
            ) zur Aufgabe haben.</s>
            <s xml:id="echoid-s3032" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s3033" xml:space="preserve">Um die Lebenserhaltung, ſei es alſo der Individuen, ſei
              <lb/>
            es der Geſchlechter, drehen ſich alle Lebensverrichtungen der
              <lb/>
            Lebeweſen: </s>
            <s xml:id="echoid-s3034" xml:space="preserve">von dieſem Geſichtspunkt aus ſind demgemäß alle
              <lb/>
            Organe, alle Einrichtungen, welche die Organismen an ihrem
              <lb/>
            Körper bieten, zu betrachten.</s>
            <s xml:id="echoid-s3035" xml:space="preserve"/>
          </p>
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