It best described as Changing, through life
for Example :
The older we are, the less we need caloric intake because we do a lot less physical activity
But when we're old our need for fiber intake will increase because we can't digest our food like our younger days
The psychologist is using a Token Economy because for doing something, you get a reward in exchange.
There are 4 chambers of the heart
Answer:
d
Explanation:
the first three are opioids