Question

If the following events are arranged in the order in which they occur for an animal hiding and holding still in response to seeing a predator, which is the fourth event in the series?

A) information processing in the CNS
B) signaling by an efferent PNS neuron
C) activation of a sensory receptor

Answer 1

Answer: C A B

C) activation of a sensory receptor

A) information processing in the CNS

B) signaling by an efferent PNS neuron

SYNAPSE AT THE EFFECTORS for refection action.

Step-by-step explanation:

the arrival of the action potential at the effector initiate contraction of muscles and secretion by glands in response to stimulus of sighting a predator.

this involves the flow of action potential from the presynaptic neuron to the synaptic cleft where neurotransmitters, (from calcium ions fusion to the membranes) ,binds with the receptors on the muscles and post synaptic neuron to imitate synaptic reaction for action potential

this brings response in animal to run and hold still at the sight of the predator.