The best answer to the question that is being presented above would be letter <span> D. the sight of the hawk circling. It is the unconditioned stimulus for the vervent monkey's behavior because it was the normal response and was not paired with anything that would condition behavior.</span>
No Hands, please. I bet you knew that one. ...
Throw-ins. A throw-in is taken when the ball crosses a sideline and leaves the field. ...
Corner Kicks & Goal Kicks.
Fouls. The common rule of thumb on fouls is “If it looks like a foul, it probably is.” ...
Direct and Indirect Free Kicks. ...
Penalty Kick. ...
Two-touch Rule.
Answer:
T cell is known to be a type of lymphocyte which develops in the thymus gland and plays a central role in the immune response.
The T cells can also be distinguished from other lymphocytes by the presence of a T-cell receptor on the cell surface.