Which of the following begins a primary circular reaction?
a. An infant's thumb and mouth first come in contact unintentionally and trigger the sucking reflex.
b. An infant is given a pacifier and begins to suck on it.
c. An infant possesses an instinct that sucking a thumb is similar to sucking on a pacifier.
d. An infant is satisfied with sucking on a pacifier when he or she is not hungry.
Question 2
Which is not characteristic of Piaget's view of the first substage of the sensorimotor period?
a. Infants apply typical reflexes such as sucking and grasping.
b. By seeing or hearing an object, an infant is acting on that object.
c. Behavior is mostly automatic.
d. Infants have goals in mind and then act on those goals.
Primary, secondary, and tertiary endosymbiosis.
Antibody techniques. The specific reaction of an antibody with its antigen
The Workout (Primary Conditioning Period)
Secondary response begins more rapidly after exposure to antigen, produces more antibodies, and ...
Reach from behind to apply circular friction to the temples on both sides.
Primary and secondary immune responses