A vaccine is a substance that supports the body to produce antibodies and offer immunity in contradiction of a disease. A live attenuated vaccine comprises a version of the living microbe that has been destabilized because they are still alive this is the closest thing to an actual infection and will habitually lead the body to have a lifelong immunity after only one or two doses. A killed vaccine is created by killing the illness with chemicals, heat or radiation in which these vaccines are harmless but rouse a weaker immune reaction.
        
             
        
        
        
Seed travel allows the offspring of a plant to grow farther from their parents. This prevents them from competing with each other over resources.
        
             
        
        
        
It would be osmosis because osmosis is the diffusion of water through a selective membrane.
        
                    
             
        
        
        
No,they kill all ages for ex.A pack of lions went hunting leaving their cubs behind and a pack of hyenas come and they are hungry they will eat the food that they can