Author Question: Genetic factors have their greatest impact on Parkinson's disease in cases that involve ____. a. ... (Read 78 times)

LaDunn

  • Hero Member
  • *****
  • Posts: 526
Genetic factors have their greatest impact on Parkinson's disease in cases that involve ____.
 
  a. early onset of the disease
 b. late onset of the disease
 c. first-born children
 d. children with older brothers and sisters

Question 2

A particular area of a songbird brain grows under the influence of testosterone; hence, it is larger in breeding males than in females or immature birds. That brain area enables a mature male to sing. What type of explanation is illustrated here?
 
  a. evolutionary
  b. ontogenetic
  c. neurological
  d. physiological



katkat_flores

  • Sr. Member
  • ****
  • Posts: 328
Answer to Question 1

a

Answer to Question 2

d



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

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

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

For a complete list of videos, visit our video library