The medulla oblongata is a primary respiratory control center. It’s main function is to send signals to the muscle that controls respiration to cause breathing to occur. There are two regions in the medulla that control respiration the ventral respiratory group stimulates expiratory movement.
Answer:
The genotype of each parent plant is 1:2:1
Explanation:
I don't say you have to mark my ans as brainliest but my friend don't forget to thank me if it has really helped you....
They are well at surviving because of their thick white coat. The white fur helps them blend in with the snow and ice. The polar bear also has a layer of fat under their skin so they can survive harsh temperatures.
Answer:
The correct answer is - The neuron's intracellular charge must get more positive to meet a certain thresh hold in order to depolarize. If the neuron does not hit that threshold, then the neuron will not fire
Explanation:
In neuroscience, the depolarization of neurons shows the all or none law which is also called as all or nothing response. It states that all action potentials have the same size and the potential or strength of a nerve cell does not depend on the stimulus strength as all are the same size.
If a stimulus reaches a particular threshold cell or fiber will fire so either it will fire or not cross the threshold this is all or nothing response or law and depolarization is an example of it.
