Which of the following are characteristics of a closed family system except
a. they tend to exist in relative isolation.
b. as the family matures, changes are tolerated and supported.
c. family members are suspicious of outsiders.
d. families hold onto their established values and traditions.

b. As the family matures, changes are tolerated and supported.

Explanation:

             A closed family is one who lives together in isolation from the society. The members of the family live together but they are cut off from the rest of the society. A closed family means intake and closed, they do not interact with the rest. There is no flow of any information or messages in or out of the family.

           The members of the family looks outsiders with suspicions and do not believe them or interact with them. They hold their own beliefs and values. They follow the same rule and are rigid.

Thus the statement which is not a characteristics of a closed family system is ---

b. As the family matures, changes are tolerated and supported.

B: as the family matures, changes are tolerated and supported.

Explanation:

 A closed family is one who lives together in isolation from the society. The members of the family live together but they are cut off from the rest of the society. A closed family means intake and closed, they do not interact with the rest. There is no flow of any information or messages in or out of the family.The members of the family looks outsiders with suspicions and do not believe them or interact with them. They hold their own beliefs and values. They follow the same rule and are rigid.

d.) continue to rise rapidly

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.