This topic contains a solution. Click here to go to the answer

Author Question: Which of the following is true about the advent of puberty in boys and girls in the United States? ... (Read 73 times)

mydiamond

  • Hero Member
  • *****
  • Posts: 804
Which of the following is true about the advent of puberty in boys and girls in the United States?
 
  a. The age of advent has increased in recent years.
  b. The age of advent has remained the same in recent years.
  c. The age of advent has increased for girls in recent years, but decreased for boys.
  d. The age of advent has leveled off for boys and girls in recent years.

Question 2

If an infant cries when the mother puts her down and walks away, and then stops crying when she picks the infant back up, does this represent an understanding of object permanence?
 
  a. yes
  b. no
  c. yes, but only if the child is at least 2-months-old
  d. Not necessarily. It depends upon whether the child has a mental representation of the mother.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kkenney

  • Sr. Member
  • ****
  • Posts: 352
Answer to Question 1

D

Answer to Question 2

D




mydiamond

  • Member
  • Posts: 804
Reply 2 on: Jun 22, 2018
YES! Correct, THANKS for helping me on my review


upturnedfurball

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.

Did you know?

Cyanide works by making the human body unable to use oxygen.

For a complete list of videos, visit our video library