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Plant Behaviors and Evolution

Plant Behaviors and Evolution
Reading Level
     edHelper's suggested reading level:   grades 6 to 8
     Flesch-Kincaid grade level:   7.07

Vocabulary
     challenging words:    compounds, evolution, maximize, stimulus, survival, dissolve, characteristic, selection, happening, gradual, better, response, natural, offspring, commonly, gravity

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Plant Behaviors and Evolution
By Cindy Grigg 		  
1     When you look at a plant, you may not see much happening. But, like people and animals, plants have needs. Living things can live on Earth because Earth has certain things that allow them to grow and reproduce. Plants need light, air, water, and space.
 
2     Plants also need nutrients, or certain substances found in soil, to live. Some nutrients come from rocks which are filled with minerals. Minerals are not living, but they contain compounds that plants use as nutrients. These nutrients become part of the soil when rock minerals break up into very small pieces and dissolve. A plant takes in nutrients through its roots along with water.
 
3     Plants also get nutrients from other living things. When plants and animals die, they decay and release their nutrients which then return to the soil. This is why putting dead leaves or grass clippings on your garden is good for it.

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