Effect of temperature on plant distribution

• Temperate plants are distributed in cool regions whose temperatures do not usually exceed 25⁰C while plants that can withstand higher temperatures are more abundant in the tropics or deserts where temperatures are usually above 25⁰C.
• C₄ plants are more abundant in hot climatic temperatures because they are more efficient at fixing carbon dioxide at high temperatures. On the hand C₃ plants are more abundant in cooler environments because they fix carbon dioxide better at lower temperatures.
• Some aquatic plants can withstand very high temperatures and can thrive in hot springs while some can withstand very cold temperatures thrive in snow. The biggest percentage thrives in moderate temperatures which can support their metabolic activities.

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