In extremely hot,arid environments,plants may _______.Select the TWO answers that apply.

Question

Quizplus · Accepted Answer

In extremely hot, arid environments, plants may close stomata during the day to conserve water and avoid dehydration. However, they still need carbon dioxide for photosynthesis. Some plants have adaptations that allow them to absorb carbon dioxide from leaf spaces when the stomata are closed (option B). Additionally, some plants may collect carbon dioxide at night when the temperature is cooler and humidity is higher (option A). This allows them to minimize water loss during the day while still obtaining the necessary carbon dioxide for photosynthesis. Plants do not keep stomata open to maximize sugar production in extremely hot, arid environments due to risk of dehydration (option E). Keeping stomata closed all the time is also not beneficial as it prevents gas exchange and can lead to accumulation of toxic substances in the plant tissues (option D).

In Extremely Hot,arid Environments,plants May _______