Depending on what happens with the environment if its a decline in resources it could completely fall and tear itself apart it just depends really on what you think of just make up a situation in your head and talk about that 
        
             
        
        
        
Answer:
genetic drift
Explanation:
Genetic drift is a change in the frequency of an allele within a population over time. There are no environmental influences that cause genetic drift to occur.
 
        
             
        
        
        
Answer: Step 7
Question: Refer to this portion of a dichotomous key for fish identification to answer the question. 1. (a) Has a single dorsal fin ® 5 (b) Has a double dorsal fin ® 2 5. (a) Has small fin on back near tail ® 6 (b) Has no fin on back near tail ® 7 6. (a) Has barbs near the mouth ® Catfish (b) Does not have barbs near the mouth ® 10 What is the next step to complete to identify a fish that has a single dorsal fin, no fin on the back near the tail, and no barbs near the mouth? step 2 step 5 step 7 step 10
 
        
                    
             
        
        
        
The correct answer would be A or the first option