Most plants prevent nighttime transpiration but plants like cacti open their stomata at night so that transpiration can occur.

Question

Quizplus · Accepted Answer

This statement is true. Cacti are adapted to their arid environments by opening their stomata at night when the air is cooler and humidity is higher. This allows them to take in carbon dioxide and release oxygen while minimizing water loss during the hot, dry daytime hours.

Most Plants Prevent Nighttime Transpiration but Plants Like Cacti Open