Which occurs in plants living in relatively mild climates undergo _____.Group of answer choicesC4 photosynthesisCAM photosynthesisC3 photosynthesisNext

In plants living in relatively mild climates, the process that typically occurs is C3 photosynthesis.

Explanation:

1. C3 Photosynthesis: This is the most common pathway for photosynthesis in plants and it occurs in moderate climates. In C3 plants, the initial carbon fixation occurs through the Calvin cycle, which incorporates CO₂ into a three-carbon compound (3-phosphoglycerate). Most temperate and many tropical plants utilize this method.

2. C4 and CAM Photosynthesis:

   • C4 Photosynthesis is adapted to high light, high temperatures, and limited rainfall. It minimizes photorespiration and allows plants to maintain efficient photosynthesis under these conditions (e.g., corn, sugarcane).
   • CAM Photosynthesis (Crassulacean Acid Metabolism) is primarily found in succulent plants (e.g., cacti) that have adapted to arid conditions. CAM plants open their stomata at night to reduce water loss, taking in CO₂ for storage and using it during the day for photosynthesis.

Given these distinctions, plants in mild climates predominantly use C3 photosynthesis, as they do not face the extreme conditions that would necessitate the adaptations seen in C4 or CAM plants.