- A CAM photosynthesis
- B the C3 fixation type
- C only night flowering
- D a deep taproot use
Correct answer: A. CAM photosynthesis
Explanation: CAM plants open stomata at night to conserve water.
Concept context
How organisms interact with abiotic factors and respond to stress, plus population attributes, growth models, and interspecific interactions such as predation, competition, and mutualism.