Explanation:
With a Child's blood type of O the parents will be a combination of: 
O and O 
or 
A and A 
or A and B 
or B and B.
Answer: 
Since we know the father is A, then the mother must be O. 
Since With the Parents' combination of blood types of A and O, the child can have the following possible blood types: A or O.
        
             
        
        
        
Answer:
200 meters
Explanation:
A kilometer is 1,000 meter. 0.2 x 1,000 is 200 meters.
You can also think of it this way, 0.2 is 1/5. We need to find 1/5 of a kilometer. We know the conversion is 1,000 meters/kilometer. 1,000/5 is 200. Therefore you must walk 200 meters to hatch the egg.
 
        
             
        
        
        
Overlapping niches lead to competition because they need the same resources such as food sources