The positive impact of breast feeding probably reflects

a. nutritional factors
b. increased physical and social contact between nursing infant and mother
c. evolutionary history of the species
d. all of the above

Answer: d. all of the above

Psychology

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Normal aging changes:

A) begin in late-middle age and suddenly get dramatically worse. B) gradually progress over years. C) start at age 65. D) begin during childhood.

Psychology

Andrew's friends have noticed that lately he sleeps constantly but is always tired and complains of feeling too hot or too cold. Although Andrew had formerly been very athletic, lately his muscle tone has been greatly reduced

The source of Andrew's problem is probably an ______ gland. a. overactive pituitary b. underactive pituitary c. overactive thyroid d. underactive thyroid

Psychology