B. sodium and chloride because an ionic bond only form between oppositely charged particles.
        
                    
             
        
        
        
Answer:
a budget is like a spending limit put to prevent buying too much on wants and not enough on needs. You could track your budget by making like a reminder or like make your personal voice assistant keep track of how much money your spending daily, weekly, monthly or etc.
Explanation:
 
        
             
        
        
        
This means that the fertilized egg has implanted in the fallopian tube and is growing outside of the uterus. An ectopic pregnancy occurs when the fertilized egg settles and grows in any location other than the inner lining of the uterus. Most of these cases occurs in the Fallopian tube (tubal pregnancy). If untreated ectopic pregnancy can be a medical emergency. 
        
             
        
        
        
B, both chemical and biological factors are involved
        
             
        
        
        
Answer:
Process during which a double-stranded DNA molecule is ... This means that each of the two strands in double-stranded DNA acts as a template to produce two new strands.This allows each base to match up with its partner: each having one strand from the original DNA and one strand of new DNA