The development of perception that allowed for color differentiation was a functional development; not all animals have this ability. What made it functional?
a. It allows for night vision.
b. It allows for differentiation of ripe fruits.
c. It enabled bipedalism.
d. It allows for contrast detection.
Answer: B
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Hand gestures communicate ________, and facial expressions communicate ________
a. specific emotions; specific emotions b. general emotional states; specific emotions c. general emotional states; general emotional states d. specific emotions; general emotional states
Three-year-old Renee is sociable and affectionate. She has always been underweight
However, recently, she has become perpetually hungry and seems to be obsessed with food. She is not yet walking but is able to say a few words. Renee may have: a. Cerebral palsy b. Lesch-Nyhan syndrome c. Klinefelter's syndrome d. Prader-Willi syndrome e. Down syndrome