Answer:During pregnancy, red blood cells from the unborn baby can cross into the mother's blood through the placenta. If the mother is Rh-negative, her immune system treats Rh-positive fetal cells as if they were a foreign substance. The mother's body makes antibodies against the fetal blood cells
Explanation:
 
        
             
        
        
        
Answer: Family, Social and Neglect 
Explanation: 
Family Risk Factors: Family risk factors include childhood maltreatment in which the parent child relationship, marital status of parents, level of understanding among the family members also influences the abuse of alcohol and drug abuse.
Social Risk Factors: The society in which the person or child is living also influences the drug, tobacco and alcohol abuse. A teenage easily gets influenced by the society and place where they are living.
Neglect: If a person feels neglected emotionally by the partners or parents then there is an increased chance of alcohol or drug abuse. If the important necessities of life such as education, clothes, food is fulfilled by the guardians then also there are  chances that a person might get towards alcohol and drug abuse.
 
        
             
        
        
        
Answer:
Read Exp:
Explanation:
1st one - Attracts Pollinators. 
2nd one -  Prevents water loss.
3rd one - Traps insects. 
 
        
             
        
        
        
Answer:
chicken wit a bagel 
Explanation:
you see the chicken got a bagel