The source of alpha particles in a smoke detector is the Americium.
Each step of the food chain in the energy pyramid is called a trophic level. Plants or other photosynthetic organisms (autotrophs) are found on the first trophic level, at the bottom of the pyramid. The next level will be the herbivores, and then the carnivores that eat the herbivores.
Final amount =initial anount *(1/2)^(t/half life)
final amount =2.000 mg *(1/2)^(10.5/5.20) = 0.493 mg remain after 10.5 years
Answer:
Competition
Explanation:
Peppered moths get their color in lieu to become the fittest among all so that they can survive easily. During industrial age, when pollution suddenly became high these moths changed their color through evolution in order to save themselves from their predators.
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