Of the following body systems, cardiovascular, respiratory, immune, neuroendocrine, and digestive, ...

Of the following body systems, cardiovascular, respiratory, immune, neuroendocrine, and digestive, which, if any, will reach greatest capacity in young adulthood?
 
  A) All
  B) None
  C) Only cardiovascular and immune
  D) Only digestive and respiratory

Question 2

Rhoda, a typical 18-year-old college student, will probably continue to gain muscle mass for about how many more years?
 
  A) 3
  B) 7
  C) 12
  D) 20

Question 3

The average male will reach his maximum height in his
 
  A) early teens.
  B) late teens.
  C) early 20s.
  D) late 20s.

Question 4

People reach their physical peak during
 
  A) adolescence.
  B) young adulthood.
  C) middle adulthood.
  D) middle childhood.

Question 5

Gordon has rich parents, but his friend Rick comes from a poor family. By the time both are 25 years old, it's likeliest that
 
  A) Gordon will have kids.
  B) Gordon will be working full time.
  C) Rick will be in graduate school.
  D) Rick will be married.

Question 6

All of the following are factors in the lengthening transition to adulthood except
 
  A) young people are less sexually mature than people their age were in the past.
  B) young people are entering the workforce at a later age than people their age did in the past.
  C) young people are deferring marriage until a later age than people their age did in the past.
  D) young people are getting more education than people their age did in the past.