Answer:
The limbic system is a system of structures that includes the amygdala. This system has been implicated in emotion behavior. 
Explanation: Hello! I answered your question but know how to explain. :)
 
        
             
        
        
        
Answer:A. decomposers
Explanation: A decomposer is an organism that decomposes, or breaks down, organic material such as the remains of dead organisms. Decomposers include bacteria and fungi. These organisms carry out the process of decomposition, which all living organisms undergo after death.
 
        
             
        
        
        
Answer:
D making a conclusion as they are telling you what they found 
 
        
             
        
        
        
Answer:
The hard parts of organisms, such as bones, shells, and teeth have a better chance of becoming fossils than do softer parts. One reason for this is that scavengers generally do not eat these parts. Hard parts also decay more slowly than soft parts, giving more time for them to be buried.
Explanation:
 
        
             
        
        
        
Lipids are found in cell membranes in double layer which is called "Lipid-bilayer".
So, option A is your answer.
Hope this helps!