<em>Saprobes</em><em> </em>derive their nourishment from nonliving or decaying organic matter.
<em>Detritivores</em> feed on dead, organic material and play an important role in the breakdown of organic matter from decomposing animals and plants.
A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process. Catalysts typically speed up a reaction by reducing the activation energy or changing the reaction mechanism. Enzymes are proteins that act as catalysts in biochemical reactions
Explanation: I don't know if this will help but hopefully it does
Answer: Leaves in a cactus are modified into spines to reduce loss of water from leaves by transpiration. Then the plant makes from the process of photosynthesis which is performed by the stem.
