3 Positive reinforcement is most effective when it occurs immediately after the behavior. Reinforcement should be presented enthusiastically and should occur frequently. Deliver reinforcement quickly: A shorter time between a behavior and positive reinforcement makes a stronger connection between the two
D Type. He is changing the type of activity he is doing for his bike-riding routine.
Answer:
It includes enough, and not too much, of all essential nutrients.
Explanation:
It becomes a fetus
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