Hello!
If you look at a zipper, you'll see that it doesn't have a wheel or an axle. A zipper links the <span>protruding teeth that the zip contains. Your answer would be B!
You can feel free to let me know if you have any questions regarding this!
Thanks!
- TetraFish</span>
        
                    
             
        
        
        
Hello
Reviewing over by memorizing them 
Flash cards
Quizlet
Kahoot! 
These are different way to study
Hope this helps 
Plz mark me as brainist
        
             
        
        
        
Catalysts are substances that cause a chemical reaction to occur in a different way than it would otherwise happen without that catalyst – a catalyst could cause a reaction to happen at a faster rate, or at a lower temperature, than would be possible without the catalyst.<span>
</span>
        
             
        
        
        
Answer:
Between the roach's body and the mantle is a space called the mantle cavity. It has gills for cockroaches to breathe
 
        
                    
             
        
        
        
Answer:
The energy from light causes a chemical reaction that breaks down the molecules of carbon dioxide and water and reorganizes them to make the sugar (glucose) and oxygen gas. After the sugar is produced, it is then broken down by the mitochondria into energy that can be used for growth and repair.