Author Question: In developed countries, the average age at the onset of menarche is A. 12.2 years B. 13.2 years ... (Read 44 times)

saliriagwu

  • Hero Member
  • *****
  • Posts: 537
In developed countries, the average age at the onset of menarche is
 
  A. 12.2 years
  B. 13.2 years
  C. 14.2 years
  D. 15.2 years

Question 2

According to the Fels longitudinal growth study, what is the average age (rounded to nearest whole year) at which American boys and girls reach peak height velocity?
 
  A. 11, boys; 10, girls
  B. 12, boys; 11, girls
  C. 13, boys; 13, girls
  D. 14, boys; 12, girls



macagn

  • Sr. Member
  • ****
  • Posts: 345
Answer to Question 1

B

Answer to Question 2

D



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

For a complete list of videos, visit our video library