Humans or other land animals sleep half unconscious and water animals don't
the answer is The majority leader
<span>Because its members are so different from one another. </span>
In operant conditioning, <span>adding something to decrease the likelihood of behavior is called: positive punishment
people tend to avoid something if we associate that thing with something that have negative effect to us.
For example, If you add a punishment every time a child leave their toy without returning it to the box, the child will be less likely to repeat that action in the future</span>