Manzanilla, hinojo, menta puperita, melisa, regaliz, jengibre
        
             
        
        
        
I'll choose Golden Retrievers:
These dogs where created for duck-hunters. Their purpose was to go catch the ducks that fell on the lake/river once they were shot by the hunter - here we see how they serve (or actually served) men. 
Nowadays, Golden Retrievers are known to like water a lot, and to be very playful with it - and here is where we see a genetic adaptation. They needed to be in water, and were modified to like it. 
Hope it helped,
BioTeacher101
 
        
             
        
        
        
Answer:
a. is marked by limited changes in reproductive hormones
Explanation:
 
        
             
        
        
        
I believe (not sure) that the answer is B, viruses must invade their host before being able to reproduce.
I remember seeing a diagram of the general life of a virus, and I remember seeing the virus sticking to a cell, merging in, and reproducing thereafter (sort of like a factory). Once again, I am not sure and the answer may as well be another one.