[Campbell Biology P.891] According to Figure 39.1, what is a direct benefit for sunflowers t... | Practice Question

According to Figure 39.1, what is a direct benefit for sunflowers to track the sun from east to west each day?

  • A: Maximizing photosynthetic efficiency throughout the day.
  • B: Releasing greater amounts of chemicals that attract pollinators.
  • C: Conserving water by minimizing exposure to direct sunlight.
  • D: Preventing herbivore attacks by changing orientation.

Explanation

Figure 39.1 states, 'By facing the hot sun during the day, the floral heads become warmer and release greater amounts of chemicals that attract pollinators.' This directly links tracking the sun to increased pollinator attraction.