Author Question: In what percentage of children with autism do symptoms arise in toddlerhood rather than in infancy? ... (Read 109 times)

Mimi

  • Hero Member
  • *****
  • Posts: 542
In what percentage of children with autism do symptoms arise in toddlerhood rather than in infancy?
 
  a. 30 percent
  b. 50 percent
  c. 75 percent
  d. 100 percent

Question 2

Which statement about current views of the causes of autism is correct?
 
  a. Autism is most likely caused by reactions to immunizations or early childhood infections.
  b. Although many genes appear to be associated with autism, no clear causal relationship between a specific genetic abnormality and the occurrence of autism has been established.
  c. Research indicates that the cause will be located in an area of the X chromosome.
  d. Environmental factors, such as family configuration, are thought to be the primary cause.



Joc

  • Sr. Member
  • ****
  • Posts: 317
Answer to Question 1

a

Answer to Question 2

b



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

Throughout history, plants containing cardiac steroids have been used as heart drugs and as poisons (e.g., in arrows used in combat), emetics, and diuretics.

Did you know?

Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

Did you know?

Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.

For a complete list of videos, visit our video library