Parkinson's disease may be caused by ______.

Miriam is in 2nd grade. When her classmates are asked who she is, they have difficulty remembering her and find it hard describing her. She is neither liked nor disliked by her classmates, but for the most part, goes unnoticed

From the four categories of social status, Miriam would fall into the category of ____. a. popular b. rejected c. controversial d. neglected

Standardized achievement tests first became available in the 1920s

Indicate whether the statement is true or false