Larry is taking a walk in the park. the pollen in the air makes him sneeze constantly. what line of defense is his immune system exhibiting?
a.
first line of defense
b.
second line of defense
c.
third line of defense
d.
fourth line of defense

Which of the following is an important function of child-directed speech? (a) it captures the infant’s attention and maintains communication. (b) it reduces the occurrence of infantile amnesia for the earliest memories of infancy. (c) it reduces the need for reciprocal interaction between caregivers and children. (d) it assists in prolonging rem sleep in infants.

What should be changed to make the following sentence true? "the stress model suggests that people with a predisposition for a disorder are more likely to develop the disorder when faced with stress."

Why is important to cover your hands and feet in cold weather? a. they are furthest from your heart. b. they are often last to receive blood flow. c. they can suffer from tissue damage in cold weather. d. all of the above