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

Author Question: During the past century and a half, the average age of menarche in the United States has plummeted. ... (Read 127 times)

dollx

  • Hero Member
  • *****
  • Posts: 558
During the past century and a half, the average age of menarche in the United States has plummeted. This is an example of:
 
  a. proximodistal growth. c. secular trend.
  b. cephalocaudal growth. d. the effects of excessive estrogen.

Question 2

According to Piaget's cognitive-developmental theory:
 
  a. children develop the skills that lead to object permanence by 3 months of age.
  b. children develop an understanding of object permanence all at once.
  c. children come to understand object permanence even without prior experience.
  d. children develop object permanence before they develop emotional bonds to specific caregivers.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Kjones0604

  • Sr. Member
  • ****
  • Posts: 327
Answer to Question 1

C

Answer to Question 2

D




dollx

  • Member
  • Posts: 558
Reply 2 on: Jun 22, 2018
Gracias!


momolu

  • Member
  • Posts: 320
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

For a complete list of videos, visit our video library