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<u>Answer</u>: an all or none response
According to the all-or-none law, it a certain threshol is crossed by a stimulus' strenght, it will cause a response in the nerve cell or muscle fiber. However, the strenght of the response will always be the same and will not vary with different stimulus strengths. The only requirement is for the threshold to be crossed.
Answer:is a transfomation of a per existing rock
Explanation :Marble ,Slate.
<span>Everyone’s DNA are different because they are different
people. One part of DNA are your genes. The genes are what you look like, hair
color, eye color, everything that you can
get from your parents. Even if you have a twin, it’s not necessary that you two
would have the same genes. For example, one could have green eyes and the other
could have brown eyes.
</span>
<span>Good luck and hope I helped. :)</span>
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