Answer:
B
Explanation:
The experimental drug has a direct effect on the dependent variable which is the presence of the headache.
Answer:
True
Explanation:
A car is designed to utilize fuel as its source of energy. This fuel contains chemicals, which the engine of the car breaks down via combustion to facilitate its functioning. Kinetic energy is a form of mechanical energy produced as a result of motion. A moving object, individual etc uses kinetic energy to do so.
The fuel (gasoline) being supplied into the car's engine makes the car able to move, hence, we can say that the chemical energy present in the fuel is being converted to kinetic energy (observable in the car on motion) with the release of heat by the engine.
Answer:
negative feedback inhibition.
