Strolling in the Sonoran Desert, you come upon a stately Saguaro cactus. The large central "trunks" of this cactus are covered with numerous smaller spines. The central stalks are modified ________ used for water storage and spines are modified ________ used for protection.
A) stems; leaves
B) leaves; leaves
C) petioles; leaf blades
D) leaf blades; trichomes
E) stems; fruits

Question

Quizplus · Accepted Answer

The central stalks of the Saguaro cactus are modified stems used for water storage, and the numerous smaller spines are modified leaves used for protection.

Strolling in the Sonoran Desert, You Come Upon a Stately