Answer:
Mitochondria
Explanation:
The enzymatic reactions of the cellular respiration begin in the cytoplasm, but most of the reactions occur in the mitochondria.
Answer: C.)competition.
Explanation: the struggle between organisms for food, water, and other needs.
Example: When two prides(lions group) both need food they will fight each other for it.(Cra*p example xD)
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Hope this helps
Potassium is placed where it is based on its properties and it's reactivity. It's also placed there based on it's atomic number.
Actually the answe is mass.