This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: At about what age do babies experience a transitional period, when changes in the structure of the ... (Read 33 times)

ghost!

  • Hero Member
  • *****
  • Posts: 560
on: Jun 22, 2018
At about what age do babies experience a transitional period, when changes in the structure of the vocal tract let them produce more complex sounds, such as buuuuu and paaaa?
 
  a. 2-3 months c. 7-8 months
  b. 4-6 months d. 9-10 months

Question 2

During the first 2 months of life, babies produce only
 
  a. cooing sounds. c. reflexive sounds.
  b. babbling sounds. d. crying sounds.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

diesoon

  • Sr. Member
  • ****
  • Posts: 353
Reply #1 on: Jun 22, 2018
Answer to Question 1

B

Answer to Question 2

C


ghost!

  • Member
  • Posts: 560
Reply 2 on: Jun 22, 2018
Gracias!

ebonylittles

  • Member
  • Posts: 318
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

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?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

Structure of a polypeptide Structure of a polypeptide
Hurricane Structure Hurricane Structure
Structure of the nucleosome core particle as revealed by X-ray diffraction Structure of the nucleosome core particle as revealed by X-ray diffraction
Basic Chemical Structure of Amino Acids Basic Chemical Structure of Amino Acids
Typical bacterial size and structure Typical bacterial size and structure
Transfer RNA structure Transfer RNA structure
Video: Transferring genes into plants Animation

For a complete list of videos, visit our video library