The answer is B.
A- it’s hotter, why do you need to see?
B- this regulates body temperature 
C and D don’t have anything to do with higher temperatures.
I hope this helps!
        
                    
             
        
        
        
Answer:
to remove carbon dioxide from the body
Explanation:
I am pretty sure that's the right answer.
 
        
                    
             
        
        
        
Answer:
A.
Explanation:
Because the trait undergoes a secondary loss; it has been there but it doesn't always appear in all generations. 
 
        
             
        
        
        
I n the F1 generation, there will be no recessive offspring but in the F2 generation there is a 25% of offspring being recessive.
You can find more info about percentages by observing images. called Punnett Squares.
Hope it helped,
BioTeacher101
        
             
        
        
        
They’ve helped end/calm down pandemics and epidemics and allowed us to go out and start living our life again. 
You don’t have to use this word for word just an idea