Mainly because of racism and sexism.
        
             
        
        
        
Answer: Mary's pregnancy makes it all the more shocking that her husband is planning to leave her. She is six months pregnant—very far along for him to decide to bail out of the marriage. Further, the coldness with which her husband delivers the news must also be shocking. He says to her:
But there needn’t really be any fuss. I hope not anyway. It wouldn’t be very good for my job. She loved her husband up until this point, looking forward to his coming home from work as her "blissful" time. She liked being with him and even enjoyed the way he sat in his chair.
When she finds out he is divorcing her, her initial response is disbelief and denial. She then kills him quickly with the frozen lamb, not even thinking about what she is doing until after he is dead.
Her knowledge of having a child to protect and her desire that it not be orphaned then influences Mary to cover up her crime. 
Explanation:hope this helps
 
        
             
        
        
        
We know that Jimmy is desperate for his father's approval
-  because of the efforts he put into finding out who Mephistopheles was.
The reader can sense that Jimmy was desperate for his father's approval because of the effort he put into uncovering the case of Lucy Welch's death. 
The case also worried him as he was seen discussing it with Doctor Larsen. The doctor provided useful tips that helped the case. 
After his consultation with Dr. Larsen, he took the photograph's book to all the places Mephistopheles killed women. These places include the bar where Helen Dunn worked and the Huggins apartment.
Learn more here:
brainly.com/question/20630040
 
        
             
        
        
        
Answer: The ability to curl your tongue up on the sides (T, tongue rolling) is dominant to not being able to roll your tongue (t). A woman who can roll her tongue marries a man who cannot. ... Consider human population in problem 2 consisting of 1 percent of individuals of genotype Mm and 99 percent mm. ... /2 possible genotypes-ex: gene with 2 alleles ...
Explanation: