Untitledwater, and salts, but devouring their neighbours. These units were notclosed in with cellulose, but remained naked, with their living matteror protoplasm flowing out in changeful processes, such as we see in theAmoebæ in the ditch or in our own white blood corpuscles and otheramoeboid cells. These were the originators of the animal kingdom. Thusfrom very simple Protists the first animals and the first plants mayhave arisen. All were still very minute, and it is worth rememberingthat had there been any scientific spectator after our kind upon theearth during these long ages, he would have lamented the entire absenceof life, although the seas were teeming. The simplest forms of life andthe protoplasm which Huxley called the physical basis of life will bedealt with in the chapter on Biology in a later section of this work.FIRST GREAT STEPS IN EVOLUTIONTHE FIRST PLANTS--THE FIRST ANIMALS--BEGINNINGS OF BODIES--EVOLUTION OFSEX--BEGINNING OF NATURAL DEATH§ 1
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