Answer:
In primary succession, newly exposed or newly formed rock is colonized by living things for the first time. In secondary succession, an area that was previously occupied by living things is disturbed, then re-colonized following the disturbance.
 
        
             
        
        
        
Answer:
The fossil theory and the distribution of species
Explanation:
 
        
                    
             
        
        
        
The two tiny structures located in the cytoplasm near the nuclear envelope at the beginning of prophase are called <u>centrioles.</u>
 
        
             
        
        
        
A stimulus triggers the body to create a response that feeds back to
reverse the changes caused by the original stimulus,the whole process is
known as n<span>egative feedback loop.Mark Me Brainlest Please</span>