Plants play a crucial role in the carbon cycle because they : A. do not release carbon dioxide during cellular respiration. B. Allow carbon to enter an ecosystem through photosynthesis. C. Have special bacteria that live in their root systems. D. Are chemically converted into fossil fuels when burned.

one is through turgidity. this occurs before ground tissue ( collenchyma

and sclerenchyma cells) become well

developed to give structural support to the plant as it grows bigger. the xylem

tissue (composed of rigid tissue) of the young

plant render this support and also maintaining osmotic turgidity of the surrounding

plant cells.

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