Where does the Sensory input division of the nervous system send it's signals to?

Which field of study contributes ideas and concepts to biomechanics?

Andrew feels good about himself. he doesn't know exactly why he is so happy, but every day he looks forward to his schoolwork and chores. "i play a game," he says. "i make a list of everything i have to get done, and then i try to finish it all before a certain time. for some reason, i feel great when i beat my time." based on this information, why is andrew happy? he gets a proper amount of sleep he eats healthy meals he has a strong family support group he regularly meets his own goals

Identify one common emotion a child experiences at this stage. how is this expressed from ages one to three?