D! Predictable and controlled
Cigarette smoking decreases speed in track runner, due to the fact that their lungs have black spots. Making it harder for them to breathe. And harder to breathe causing slowing in speed.
A. bacteria
This answer is correct on Plato. It should be correct for any other website as well.
It involves sympathetic neurons, parasympathetic neurons, and the somatic nervous system. Vomiting occurs when the body is in need to empty the stomach this happens when the receptor is activated then a signal is sent to the emetic center. Responses in the motor are then initiated such as the contraction of diaphragm and others.
