Answer:
You have landed in a tundra. 
Explanation:
Birds as in penguins
Wolves as in Arctic wolves/foxes
The ground is hard because it is frozen
The air is cold 
 
        
             
        
        
        
This change in chromosome number is the result of B. Fertilization. Both of the individual gametes from the male and female combine together to produce a zygote or developing offspring that is diploid in most cases, and possess both sets of genetic content or chromosomal information, one from each parent.
        
                    
             
        
        
        
I'm not sure if I will answer the question you asked, as I many have interpreted it incorrectly. In natural selection, there must be variance in the gene pool, the total frequency of alleles in a population. Now, one of the organisms may have a gene that somehow helps them survive from the selective force much better compared to the others. If this does happen, over time the gene pool will narrow down to become just the genes of that organism that survived better in the first place because the rest would be taken care of by the selective force. So, the alleles and trait come from the first organisms that had the advantage over the others of its species.
        
             
        
        
        
Answer:
25% type A, 25% type B, 25% type AB, 25% type O
If you put it into a punnett square:
           B                  O
A        AB                 AO
O       BO                 OO
you get 25% for each phenotype
 
        
             
        
        
        
If this division is based on tissue formation then it is correct because there are 8 types of cells. If it's based on the function then it's incorrect because there are more than 10.