Answer:
no it can lead to defects as well as leading to evolution, such mutations can happen from more than one factor as well such as environmental factors personal factors ect
 
        
             
        
        
        
Answer:
Explanation:
The first mass extinction is called the Ordovician-Silurian Extinction. It occurred about 440 million years ago, at the end of the period that paleontologists and geologists call the Ordovician, and followed by the start of the Silurian period. In this extinction event, many small organisms of the sea became extinct.
 
        
             
        
        
        
Absolute time is the answer
        
             
        
        
        
Explanation:
3rd planet orbiting ba yellow dwarf star in the milky way galaxy
 
        
                    
             
        
        
        
Answer:
Homeostatic control mechanisms have at least three interdependent components: a receptor, integrating center, and effector. ... The integrating center, generally a region of the brain called the hypothalamus, signals an effector (e.g. muscles or an organ ) to respond to the stimuli.
Explanation: