Transcription of CHAPTER6 Life Processes
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CHAPTER6 Life Processes
Science100 Control andCoordination6 CHAPTERIn the previous chapter, we looked at life Processes involved in themaintenance functions in living organisms. There, we had started witha notion we all have, that if we see something moving, it is alive. Some ofthese movements are in fact the result of growth, as in plants. A seedgerminates and grows, and we can see that the seedling moves over thecourse of a few days, it pushes soil aside and comes out. But if its growthwere to be stopped, these movements would not happen. Somemovements, as in many animals and some plants, are not connectedwith growth. A cat running, children playing on swings, buffaloeschewing cud these are not movements caused by do we associate such visible movements with life ?
If we see a dog running, or a cow chewing cud, or a man shouting loudly on the street, we know that these are living beings. What if the dog or the cow or the man wer e asleep? W e would still think that they wer e alive, but how did we know that? W e see them br eathing, and we know that they are alive. What about plants?
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