Ithe answer is b. and the temperature brought fires to the crops. One movie example of this could be the intersteller.
<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.
There were more dark moths around factories because trees were darker near factories because of pollution. More light moths were found in the country away from the factories, in the forests with no factory pollution
Answer:
Tractive GPS Collar.
Explanation:
It is one of the best I have used, and it includes many useful features.
