Well, an endoskeleton is an internal skeleton, like humans have.
Pro: Bones do not get broke as easily, since they are inside of the body. Bones that break also heal more quickly in an endoskeleton, since they have tissue and blood surrounding it and transferring nutrients.
Con: The flesh can get easily damaged. There is no shedding with endoskeletons, so a new skeleton cannot be grown in the event of an injury. 
 
        
             
        
        
        
Mitochondria, cell membrane, and vacules
        
             
        
        
        
For the answer to the question above asking <span>What element of life in Pacific Grove most influenced John Steinbeck?</span><span>
The answer is the workers in the fields.
I hope my answer helped you. Feel free to ask more question above. Have a nice day!</span>
        
             
        
        
        
Answer:
A mountain chain of sedimentary rock may form as a result of a convergent boundary of two continental crusts
Explanation:
 
        
             
        
        
        
Plants can make their own food by photosynthesising however, animals need to consume plants for energy/as food if their were no plants animals would starve. plants also provideanimals with oxygen as a waste product of photosynthesis which animals need to survive