Tiana had a small dog at home. Now that she was learning to talk, she called the dog “dog.” Whenever she saw a small dog when she was away from home, she said “dog.” But when she saw a big dog, she didn’t call it anything. Limiting the word “dog” to small dogs is an example of

It's January 1989 in Beijing, China, and Huang and Jiao have just married. They want to conceive a child as soon as possible, as most newly married Chinese couples do

Considering it is the middle of winter, and fruits and vegetables are not readily available, what important nutrient in Huang's prenatal diet is likely to be missing, potentially causing her child to be born with spina bifida? potassium calcium vitamin D folic acid

Twin studies of schizophrenia

A) fail to demonstrate a strong genetic link. B) yield unreliable heritabilities, ranging from .20 to .75. C) consistently yield high heritabilities, around .80. D) consistently yield low heritabilities, around .30.