Answer:
for number 2 its mosses or lichens 
 
        
             
        
        
        
Answer:
 Fungi cause decay by releasing enzymes onto the dead animal or plant. These break down complex compounds into simple soluble ones that can be absorbed by decomposers. Organisms that feed on dead material in this way are called saprophytes.
 
        
             
        
        
        
Answer:
Fungus 
Explanation:
Some fungus feed on living waste.
 
        
                    
             
        
        
        
The powerhouse of the cell: That is a term used to describe the MITOCHONDRIA, because its main function it to produce energy for cellular activities.
Mitochondria is the host of cellular respiration. This is where the Mitochondria take in glucose and oxygen to produce energy and is distributed all throughout the body as energy-rich molecules of ATP.