Answer:
a) stems; leaves
Strolling in the Sonoran Desert, you come upon a stately Saguaro cactus. The large central "trunks" of this cactus are covered with umber's smaller spines. The central stalks are modified stems used for water storage & spines are modified leaves used for protection
Step-by-step explanation:
The saguaro cactus can only grow in Sonoran desert. It is a ver slow growing plant but can grow to 60ft tall. The plant has long spikes like leafs and grows a bell shaped white flower. The central stalks are modified stems and the roots can be pounded and soaked then used to make shampoo.