Answer:bone structure
Explanation:
only one that makes sense
<span>the positive feedback mechanisms used to accelerate the output that is created by an already activated stimulus during homeostasis, the positive feedback moves levels out of the normal ranges it should usually be found. From this explanation the view provided by the positive feedback mechanism is a negative useless mechanism, but one importance of this mechanism is that it help in the bodies accumulation of blood platelets. Therefore it acts in the healing of tears and breaks in blood vessels as the blood clots.
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Answer:
Explanation:
By just making them feel better about themselves everyday and not letting them give up on life we all care about them , some people just dont show it in the best of ways....
The use of a nicaten patch will help
Answer:
Myelinated Axons; leak channels are insulated by myelin leading to less loss of current flow and better conduction velocity. Ion channels omly located at nodes of ranvier; thus signal has sultatory conduction along myelin sheaths and jumps and move much quicker
Demyelinating diseases; along locations where myelin sheaths once was current links occur and conduction slows, the signal cannot make it very far because it looses energy as it travels through the axon
Unmyelinated axon; Ion channels are sequentially placed all along axons; thus it takes longer to send signal down axon. the energy isn't leaked out, it still contains the same signal but it is simply slower. distance between voltage gated channels needs to be small enough so local current flow can depolarize the membrane.
N/B; Harder to generate action potential in demyelinating disease
axon diameter( bigger diameter= less resistance= faster current).
