Constrictions that divide the myelin sheath into segments are called _______________

Alice accidentally cut off another driver and was met by a series of beeps from the other

driver's horn. Alice's response was to raise her hand with the palm out and all fingers flat. She also mouthed "sorry" at the other driver. Her response to the other driver provides an example of __________ in the human species. a. hormonal influences on aggression b. an appeasement gesture c. a threat gesture d. the biological advantages of aggression e. both a threat and an appeasement gesture

_____________________________ is the most significant long-term health risk of the middle

childhood period. a. Cancer b. Allergies c. Asthma d. Excessive weight gain