Which of the following is an example of a physical change but not a chemical change? Teeth breaks down food into smaller particles.

Bile in the liver breaksdown fat globules.

Salivary amylase breaks down the starch in the mouth.

Hydrochloric acid in the stomach grind the protien in the stomach.

Imagine a person stepping on a pin and pulling his or her foot away. look at the reflex arc of this scenario below. which statement best describes the image? a)the sensory nerve carries the signal from the effector to the interneuron, and the motor neuron carries the signal to the receptor. b)the motor nerve carries the signal from the receptor to the interneuron, and the sensory neuron carries the signal to the effector. c)the sensory nerve carries the signal from the receptor to the interneuron, and the motor neuron carries the signal to the effector. d)the sensory nerve carries the signal from the receptor to the motor neuron, and the interneuron carries the signal to the effector.