Evergreen needles have a thick outer coating, called a cuticle. Predict how this provides an advantage for photosynthesis. A The cuticle holds in more glucose. B The cuticle helps keep the tree cooler The cuticle allows for enhanced gas exchange. D The cuticle allows them to retain more water
D The cuticle allows them to retain more water
The thick cuticle on evergreen needles helps reduce water loss through transpiration, allowing the tree to retain more water for photosynthesis. This is especially important in dry or arid environments where water may be limited. Additionally, the cuticle helps protect the needles from drying out in harsh environmental conditions, ensuring the tree can continue to photosynthesize efficiently.