1.)an ambulance has its siren on. what direction is the ambulance moving relative to you if the siren is decreasing in pitch?
a
behind you
b
maintaining the same position
c
toward you
d
away from you
2.) loud sounds can affect your hearing by damaging the hairs and nerve cells in the cochlea.
a
true
b
false
3.) a large explosion can damage a person's hearing. what causes this damage?
a
the explosion triggers smaller explosions inside the ear.
b
compression waves from the explosion cause vibrations that damage the ear.
c
transverse waves from the explosion cause vibrations that damage the ear.
d
heat from the explosion burns the eardrum.
u8l3

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.