Early infant blinking are (first few weeks of life):
a. purely reflexive
b. intentional social signals
c. defiant – allows babies to get their way
d. produced when the nervous system is calm
A. Blinking is reflexive and there to regulate their sensory system and protect their eyes from injury.
Psychology
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a. 10 b. 25 c. 50 d. 90
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Under normal circumstances, if a sperm carrying a(n) ____ sex chromosome fertilizes an egg carrying a(n) ____ sex chromosome, a male fetus is produced
A) ?X; X B) ?X; Y C) ?Y; X D) ?Y; Y
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