Final answer:
The saguaro cactus and the durian tree have different adaptations to their respective environments. The cactus stores water in its stem, while the durian tree does not have adaptations for water conservation.
Step-by-step explanation:
The saguaro cactus and the durian tree are both adapted to their respective environments but have different characteristics. The saguaro cactus, found in desert areas, has adaptations to conserve water, such as a large barrel-shaped stem that stores water. On the other hand, the durian tree, found in rain forests, does not have adaptations for water conservation.
Therefore, neither answer A (They both need water frequently) nor answer D (They both use oxygen for photosynthesis) is correct. Answer B (They both have chloroplasts in their cells) may be correct since both plants perform photosynthesis, but it is not explicitly stated in the information provided. Answer C (They both have large leaves) is not correct as the saguaro cactus does not have leaves, and the durian tree has large leaves but they are not mentioned in the information provided.