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 69 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!

robbielu01

  • Member
  • Posts: 336
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

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.

The structure of the lacrimal apparatus. The structure of the lacrimal apparatus.
The meninges. This figure illustrates the location and structure of each layer of the meninges and t The meninges. This figure illustrates the location and structure of each layer of the meninges and t
Models of the α helix, showing different aspects of its structure Models of the α helix, showing different aspects of its structure
Steps in determining the structure of sperm whale myoglobin by x-ray crystallography Steps in determining the structure of sperm whale myoglobin by x-ray crystallography
Structure of an animal cell Structure of an animal cell
Structure and function of the gills of a bony fish. Structure and function of the gills of a bony fish.
Video: Mechanisms for chromosome movement Animation

For a complete list of videos, visit our video library