BIOLOGICAL BASES OF BEHAVIOR
THE NERVOUS AND ENDOCRINE SYSTEMS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The signal gets weaker as it moves down the axon
|
|
|
The mosquito may not provide enough stimulation for a neuron to reach its threshold
|
|
|
The mosquito is sending only inhibitory responses to our neuron
|
|
|
Only a few neurons a firing and they are too weak to detect
|
Detailed explanation-1: -Why is it possible that some weak signals (such as a mosquito landing on your arm) go completely unnoticed? d. Only a few neurons are firing and they are too weak to detect.
Detailed explanation-2: -If you touch something that is very hot, your hand moves away quickly before you even feel the pain. You don’t have to think about it because the response is a reflex that does not involve the brain. A reflex is a rapid, unlearned, involuntary (automatic) response to a stimulus (change in the environment).
Detailed explanation-3: -The nervous system uses tiny cells called neurons (NEW-ronz) to send messages back and forth from the brain, through the spinal cord, to the nerves throughout the body. Billions of neurons work together to create a communication network.
Detailed explanation-4: -Question 2.4. How does our nervous system allow us to experience the difference between a slap and a tap on the back? ANSWER: Stronger stimuli (the slap) cause more neurons to fire and to fire more frequently than happens with weaker stimuli (the tap).