Gradual changes in the frequency of diseases over long periods are known as SECULAR TIME TRENDS. For example, the rate of mortality in USA due to coronary heart diseases over a period of time. Onset of puberty in girls is also a secular time trend. 
Secular time trend is also referred as Secular Variation and Secular Drift. 
        
             
        
        
        
Answer:
1/8
Explanation:
Traditional method of solving this problem can be by using the punnett square.
 
        
             
        
        
        
Addition, you added an extra T between the first A and C
        
                    
             
        
        
        
Answer:
Arginine - Leucine - Proline - Asparagine - Lysine - Arginine
Explanation:
 
        
             
        
        
        
A. behavioral isolation is when the plant or animal acts a particular way to attract their counterparts, like mating rituals.
geographic isolation is the natural barrier preventing similar species from interacting. for example, Galapagos Islands are the only home of flightless cormorants because the islands are so far from any other land for them to invade.
Temporal isolation is when two of the same or similar species cannot reproduce as a result of mismatched sexual maturity.
B. the isolation of two frog species by mating call is behavioral isolation.