This can affect the organisms living there because now, their environment is probably different than what they have been living in for a long time, so now they have to adapt to this new environment, and if they don't, the organisms will probably end up dying.
Guard cells use osmotic pressure to open and close stomata, allowing plants to regulate the amount of water and solutes within them. In order for plants to produce energy and maintain cellular function, their cells undergo the highly intricate process of photosynthesis
Amount of wear, and how long they are may contribute with age and maybe even coloration and pigment.
A grass land is a healthy green grass environment were it isnt very hot or dry.butb a savvanah has lots of heat so the grass dries up and dies