Down syndrome is sometimes referred to as trisomy-21 because individuals who have Down syndrome ______
A. have three distinct facial features by the 21st week of pregnancy
B. show three distinct temperament patterns by the 21st week of infancy
C. have a third chromosome on the 21st pair
D. have 21 genes on the 3rd pair of chromosomes
have a third chromosome on the 21st pair
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Elena, a minority child who does not speak English at home, is presently learning a second language and will most likely experience additive bilingualism
Indicate whether the statement is true or false
The most common form of color vision deficiency is due to ____.
A. poor eyesight B. malformation of area V4 in the brain C. complete absence of one of the types of cones D. long- and medium-wavelength cones making the same photopigment
Physical abuse is the most frequently reported type of child maltreatment
Indicate whether the statement is true or false
Four-year-old Angela knows the alphabet and the sounds that correspond to many of the letters. She has begun to sit with a book and "pretends" to read by telling the story that goes with each page
The term that describes Angela's current state is "readiness." Indicate whether the statement is true or false