According to Vygotsky, children's self-talk is a form of egocentric speech.

Which of the following happened during our baby day class demonstration?

a. One baby sang "Twinkle Twinkle Little Star" and another baby got frustrated when he couldn't build a block tower with more than three blocks b. two babies fought over a toy horse, and one baby pointed to a picture of a horse in his favorite book c. an older infant tried to pull off the socks of a younger infant, and a 3-year-old told us that she likes to play with her mom d. two babies passed a toy back and forth and one baby drew on a chalk board

DNA refers to:

a. di-nucleic antibody b. duonucleic acid c. deoxyribonucleic acid d. dynonucleic antigen