_______ plans are also called earnings-at-risk plans

What are the Bayley Scales of Infant Development? What do the scale assess, in particular,

what types of motor development are measured?  How can the scale be used for research purposes? What will be an ideal response?

After a nerve impulse occurs, the neuron is temporarily less likely to fire because

a. the cell is still above its resting level. b. potassium ions flow out of the neuron while the membrane gates are open. c. acetylcholine acts as an inhibitor. d. a positive after-potential has occurred.